<?php /** * Option API * * @package WordPress * @subpackage Option */ /** * Retrieves an option value based on an option name. * * If the option does not exist, and a default value is not provided, * boolean false is returned. This could be used to check whether you need * to initialize an option during installation of a plugin, however that * can be done better by using add_option() which will not overwrite * existing options. * * Not initializing an option and using boolean `false` as a return value * is a bad practice as it triggers an additional database query. * * The type of the returned value can be different from the type that was passed * when saving or updating the option. If the option value was serialized, * then it will be unserialized when it is returned. In this case the type will * be the same. For example, storing a non-scalar value like an array will * return the same array. * * In most cases non-string scalar and null values will be converted and returned * as string equivalents. * * Exceptions: * * 1. When the option has not been saved in the database, the `$default_value` value * is returned if provided. If not, boolean `false` is returned. * 2. When one of the Options API filters is used: {@see 'pre_option_$option'}, * {@see 'default_option_$option'}, or {@see 'option_$option'}, the returned * value may not match the expected type. * 3. When the option has just been saved in the database, and get_option() * is used right after, non-string scalar and null values are not converted to * string equivalents and the original type is returned. * * Examples: * * When adding options like this: `add_option( 'my_option_name', 'value' )` * and then retrieving them with `get_option( 'my_option_name' )`, the returned * values will be: * * - `false` returns `string(0) ""` * - `true` returns `string(1) "1"` * - `0` returns `string(1) "0"` * - `1` returns `string(1) "1"` * - `'0'` returns `string(1) "0"` * - `'1'` returns `string(1) "1"` * - `null` returns `string(0) ""` * * When adding options with non-scalar values like * `add_option( 'my_array', array( false, 'str', null ) )`, the returned value * will be identical to the original as it is serialized before saving * it in the database: * * array(3) { * [0] => bool(false) * [1] => string(3) "str" * [2] => NULL * } * * @since 1.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. * @param mixed $default_value Optional. Default value to return if the option does not exist. * @return mixed Value of the option. A value of any type may be returned, including * scalar (string, boolean, float, integer), null, array, object. * Scalar and null values will be returned as strings as long as they originate * from a database stored option value. If there is no option in the database, * boolean `false` is returned. */ function get_option( $option, $default_value = false ) { global $wpdb; if ( is_scalar( $option ) ) { $option = trim( $option ); } if ( empty( $option ) ) { return false; } /* * Until a proper _deprecated_option() function can be introduced, * redirect requests to deprecated keys to the new, correct ones. */ $deprecated_keys = array( 'blacklist_keys' => 'disallowed_keys', 'comment_whitelist' => 'comment_previously_approved', ); if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { _deprecated_argument( __FUNCTION__, '5.5.0', sprintf( /* translators: 1: Deprecated option key, 2: New option key. */ __( 'The "%1$s" option key has been renamed to "%2$s".' ), $option, $deprecated_keys[ $option ] ) ); return get_option( $deprecated_keys[ $option ], $default_value ); } /** * Filters the value of an existing option before it is retrieved. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * Returning a value other than false from the filter will short-circuit retrieval * and return that value instead. * * @since 1.5.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.9.0 The `$default_value` parameter was added. * * @param mixed $pre_option The value to return instead of the option value. This differs from * `$default_value`, which is used as the fallback value in the event * the option doesn't exist elsewhere in get_option(). * Default false (to skip past the short-circuit). * @param string $option Option name. * @param mixed $default_value The fallback value to return if the option does not exist. * Default false. */ $pre = apply_filters( "pre_option_{$option}", false, $option, $default_value ); /** * Filters the value of all existing options before it is retrieved. * * Returning a truthy value from the filter will effectively short-circuit retrieval * and return the passed value instead. * * @since 6.1.0 * * @param mixed $pre_option The value to return instead of the option value. This differs from * `$default_value`, which is used as the fallback value in the event * the option doesn't exist elsewhere in get_option(). * Default false (to skip past the short-circuit). * @param string $option Name of the option. * @param mixed $default_value The fallback value to return if the option does not exist. * Default false. */ $pre = apply_filters( 'pre_option', $pre, $option, $default_value ); if ( false !== $pre ) { return $pre; } if ( defined( 'WP_SETUP_CONFIG' ) ) { return false; } // Distinguish between `false` as a default, and not passing one. $passed_default = func_num_args() > 1; if ( ! wp_installing() ) { $alloptions = wp_load_alloptions(); /* * When getting an option value, we check in the following order for performance: * * 1. Check the 'alloptions' cache first to prioritize existing loaded options. * 2. Check the 'notoptions' cache before a cache lookup or DB hit. * 3. Check the 'options' cache prior to a DB hit. * 4. Check the DB for the option and cache it in either the 'options' or 'notoptions' cache. */ if ( isset( $alloptions[ $option ] ) ) { $value = $alloptions[ $option ]; } else { // Check for non-existent options first to avoid unnecessary object cache lookups and DB hits. $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( ! is_array( $notoptions ) ) { $notoptions = array(); wp_cache_set( 'notoptions', $notoptions, 'options' ); } if ( isset( $notoptions[ $option ] ) ) { /** * Filters the default value for an option. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 3.4.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$passed_default` parameter was added to distinguish between a `false` value and the default parameter value. * * @param mixed $default_value The default value to return if the option does not exist * in the database. * @param string $option Option name. * @param bool $passed_default Was `get_option()` passed a default value? */ return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); } $value = wp_cache_get( $option, 'options' ); if ( false === $value ) { $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); // Has to be get_row() instead of get_var() because of funkiness with 0, false, null values. if ( is_object( $row ) ) { $value = $row->option_value; wp_cache_add( $option, $value, 'options' ); } else { // Option does not exist, so we must cache its non-existence. $notoptions[ $option ] = true; wp_cache_set( 'notoptions', $notoptions, 'options' ); /** This filter is documented in wp-includes/option.php */ return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); } } } } else { $suppress = $wpdb->suppress_errors(); $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); $wpdb->suppress_errors( $suppress ); if ( is_object( $row ) ) { $value = $row->option_value; } else { /** This filter is documented in wp-includes/option.php */ return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); } } // If home is not set, use siteurl. if ( 'home' === $option && '' === $value ) { return get_option( 'siteurl' ); } if ( in_array( $option, array( 'siteurl', 'home', 'category_base', 'tag_base' ), true ) ) { $value = untrailingslashit( $value ); } /** * Filters the value of an existing option. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 1.5.0 As 'option_' . $setting * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * * @param mixed $value Value of the option. If stored serialized, it will be * unserialized prior to being returned. * @param string $option Option name. */ return apply_filters( "option_{$option}", maybe_unserialize( $value ), $option ); } /** * Primes specific options into the cache with a single database query. * * Only options that do not already exist in cache will be loaded. * * @since 6.4.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string[] $options An array of option names to be loaded. */ function wp_prime_option_caches( $options ) { global $wpdb; $alloptions = wp_load_alloptions(); $cached_options = wp_cache_get_multiple( $options, 'options' ); $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( ! is_array( $notoptions ) ) { $notoptions = array(); } // Filter options that are not in the cache. $options_to_prime = array(); foreach ( $options as $option ) { if ( ( ! isset( $cached_options[ $option ] ) || false === $cached_options[ $option ] ) && ! isset( $alloptions[ $option ] ) && ! isset( $notoptions[ $option ] ) ) { $options_to_prime[] = $option; } } // Bail early if there are no options to be loaded. if ( empty( $options_to_prime ) ) { return; } $results = $wpdb->get_results( $wpdb->prepare( sprintf( "SELECT option_name, option_value FROM $wpdb->options WHERE option_name IN (%s)", implode( ',', array_fill( 0, count( $options_to_prime ), '%s' ) ) ), $options_to_prime ) ); $options_found = array(); foreach ( $results as $result ) { /* * The cache is primed with the raw value (i.e. not maybe_unserialized). * * `get_option()` will handle unserializing the value as needed. */ $options_found[ $result->option_name ] = $result->option_value; } wp_cache_set_multiple( $options_found, 'options' ); // If all options were found, no need to update `notoptions` cache. if ( count( $options_found ) === count( $options_to_prime ) ) { return; } $options_not_found = array_diff( $options_to_prime, array_keys( $options_found ) ); // Add the options that were not found to the cache. $update_notoptions = false; foreach ( $options_not_found as $option_name ) { if ( ! isset( $notoptions[ $option_name ] ) ) { $notoptions[ $option_name ] = true; $update_notoptions = true; } } // Only update the cache if it was modified. if ( $update_notoptions ) { wp_cache_set( 'notoptions', $notoptions, 'options' ); } } /** * Primes the cache of all options registered with a specific option group. * * @since 6.4.0 * * @global array $new_allowed_options * * @param string $option_group The option group to load options for. */ function wp_prime_option_caches_by_group( $option_group ) { global $new_allowed_options; if ( isset( $new_allowed_options[ $option_group ] ) ) { wp_prime_option_caches( $new_allowed_options[ $option_group ] ); } } /** * Retrieves multiple options. * * Options are loaded as necessary first in order to use a single database query at most. * * @since 6.4.0 * * @param string[] $options An array of option names to retrieve. * @return array An array of key-value pairs for the requested options. */ function get_options( $options ) { wp_prime_option_caches( $options ); $result = array(); foreach ( $options as $option ) { $result[ $option ] = get_option( $option ); } return $result; } /** * Sets the autoload values for multiple options in the database. * * Autoloading too many options can lead to performance problems, especially if the options are not frequently used. * This function allows modifying the autoload value for multiple options without changing the actual option value. * This is for example recommended for plugin activation and deactivation hooks, to ensure any options exclusively used * by the plugin which are generally autoloaded can be set to not autoload when the plugin is inactive. * * @since 6.4.0 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $options Associative array of option names and their autoload values to set. The option names are * expected to not be SQL-escaped. The autoload values should be boolean values. For backward * compatibility 'yes' and 'no' are also accepted, though using these values is deprecated. * @return array Associative array of all provided $options as keys and boolean values for whether their autoload value * was updated. */ function wp_set_option_autoload_values( array $options ) { global $wpdb; if ( ! $options ) { return array(); } $grouped_options = array( 'on' => array(), 'off' => array(), ); $results = array(); foreach ( $options as $option => $autoload ) { wp_protect_special_option( $option ); // Ensure only valid options can be passed. /* * Sanitize autoload value and categorize accordingly. * The values 'yes', 'no', 'on', and 'off' are supported for backward compatibility. */ if ( 'off' === $autoload || 'no' === $autoload || false === $autoload ) { $grouped_options['off'][] = $option; } else { $grouped_options['on'][] = $option; } $results[ $option ] = false; // Initialize result value. } $where = array(); $where_args = array(); foreach ( $grouped_options as $autoload => $options ) { if ( ! $options ) { continue; } $placeholders = implode( ',', array_fill( 0, count( $options ), '%s' ) ); $where[] = "autoload != '%s' AND option_name IN ($placeholders)"; $where_args[] = $autoload; foreach ( $options as $option ) { $where_args[] = $option; } } $where = 'WHERE ' . implode( ' OR ', $where ); /* * Determine the relevant options that do not already use the given autoload value. * If no options are returned, no need to update. */ // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare $options_to_update = $wpdb->get_col( $wpdb->prepare( "SELECT option_name FROM $wpdb->options $where", $where_args ) ); if ( ! $options_to_update ) { return $results; } // Run UPDATE queries as needed (maximum 2) to update the relevant options' autoload values to 'yes' or 'no'. foreach ( $grouped_options as $autoload => $options ) { if ( ! $options ) { continue; } $options = array_intersect( $options, $options_to_update ); $grouped_options[ $autoload ] = $options; if ( ! $grouped_options[ $autoload ] ) { continue; } // Run query to update autoload value for all the options where it is needed. $success = $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->options SET autoload = %s WHERE option_name IN (" . implode( ',', array_fill( 0, count( $grouped_options[ $autoload ] ), '%s' ) ) . ')', array_merge( array( $autoload ), $grouped_options[ $autoload ] ) ) ); if ( ! $success ) { // Set option list to an empty array to indicate no options were updated. $grouped_options[ $autoload ] = array(); continue; } // Assume that on success all options were updated, which should be the case given only new values are sent. foreach ( $grouped_options[ $autoload ] as $option ) { $results[ $option ] = true; } } /* * If any options were changed to 'on', delete their individual caches, and delete 'alloptions' cache so that it * is refreshed as needed. * If no options were changed to 'on' but any options were changed to 'no', delete them from the 'alloptions' * cache. This is not necessary when options were changed to 'on', since in that situation the entire cache is * deleted anyway. */ if ( $grouped_options['on'] ) { wp_cache_delete_multiple( $grouped_options['on'], 'options' ); wp_cache_delete( 'alloptions', 'options' ); } elseif ( $grouped_options['off'] ) { $alloptions = wp_load_alloptions( true ); foreach ( $grouped_options['off'] as $option ) { if ( isset( $alloptions[ $option ] ) ) { unset( $alloptions[ $option ] ); } } wp_cache_set( 'alloptions', $alloptions, 'options' ); } return $results; } /** * Sets the autoload value for multiple options in the database. * * This is a wrapper for {@see wp_set_option_autoload_values()}, which can be used to set different autoload values for * each option at once. * * @since 6.4.0 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. * * @see wp_set_option_autoload_values() * * @param string[] $options List of option names. Expected to not be SQL-escaped. * @param bool $autoload Autoload value to control whether to load the options when WordPress starts up. * For backward compatibility 'yes' and 'no' are also accepted, though using these values is * deprecated. * @return array Associative array of all provided $options as keys and boolean values for whether their autoload value * was updated. */ function wp_set_options_autoload( array $options, $autoload ) { return wp_set_option_autoload_values( array_fill_keys( $options, $autoload ) ); } /** * Sets the autoload value for an option in the database. * * This is a wrapper for {@see wp_set_option_autoload_values()}, which can be used to set the autoload value for * multiple options at once. * * @since 6.4.0 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. * * @see wp_set_option_autoload_values() * * @param string $option Name of the option. Expected to not be SQL-escaped. * @param bool $autoload Autoload value to control whether to load the option when WordPress starts up. * For backward compatibility 'yes' and 'no' are also accepted, though using these values is * deprecated. * @return bool True if the autoload value was modified, false otherwise. */ function wp_set_option_autoload( $option, $autoload ) { $result = wp_set_option_autoload_values( array( $option => $autoload ) ); if ( isset( $result[ $option ] ) ) { return $result[ $option ]; } return false; } /** * Protects WordPress special option from being modified. * * Will die if $option is in protected list. Protected options are 'alloptions' * and 'notoptions' options. * * @since 2.2.0 * * @param string $option Option name. */ function wp_protect_special_option( $option ) { if ( 'alloptions' === $option || 'notoptions' === $option ) { wp_die( sprintf( /* translators: %s: Option name. */ __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) ); } } /** * Prints option value after sanitizing for forms. * * @since 1.5.0 * * @param string $option Option name. */ function form_option( $option ) { echo esc_attr( get_option( $option ) ); } /** * Loads and caches all autoloaded options, if available or all options. * * @since 2.2.0 * @since 5.3.1 The `$force_cache` parameter was added. * * @global wpdb $wpdb WordPress database abstraction object. * * @param bool $force_cache Optional. Whether to force an update of the local cache * from the persistent cache. Default false. * @return array List of all options. */ function wp_load_alloptions( $force_cache = false ) { global $wpdb; /** * Filters the array of alloptions before it is populated. * * Returning an array from the filter will effectively short circuit * wp_load_alloptions(), returning that value instead. * * @since 6.2.0 * * @param array|null $alloptions An array of alloptions. Default null. * @param bool $force_cache Whether to force an update of the local cache from the persistent cache. Default false. */ $alloptions = apply_filters( 'pre_wp_load_alloptions', null, $force_cache ); if ( is_array( $alloptions ) ) { return $alloptions; } if ( ! wp_installing() || ! is_multisite() ) { $alloptions = wp_cache_get( 'alloptions', 'options', $force_cache ); } else { $alloptions = false; } if ( ! $alloptions ) { $suppress = $wpdb->suppress_errors(); $alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload IN ( '" . implode( "', '", esc_sql( wp_autoload_values_to_autoload() ) ) . "' )" ); if ( ! $alloptions_db ) { $alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ); } $wpdb->suppress_errors( $suppress ); $alloptions = array(); foreach ( (array) $alloptions_db as $o ) { $alloptions[ $o->option_name ] = $o->option_value; } if ( ! wp_installing() || ! is_multisite() ) { /** * Filters all options before caching them. * * @since 4.9.0 * * @param array $alloptions Array with all options. */ $alloptions = apply_filters( 'pre_cache_alloptions', $alloptions ); wp_cache_add( 'alloptions', $alloptions, 'options' ); } } /** * Filters all options after retrieving them. * * @since 4.9.0 * * @param array $alloptions Array with all options. */ return apply_filters( 'alloptions', $alloptions ); } /** * Primes specific network options for the current network into the cache with a single database query. * * Only network options that do not already exist in cache will be loaded. * * If site is not multisite, then call wp_prime_option_caches(). * * @since 6.6.0 * * @see wp_prime_network_option_caches() * * @param string[] $options An array of option names to be loaded. */ function wp_prime_site_option_caches( array $options ) { wp_prime_network_option_caches( null, $options ); } /** * Primes specific network options into the cache with a single database query. * * Only network options that do not already exist in cache will be loaded. * * If site is not multisite, then call wp_prime_option_caches(). * * @since 6.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|null $network_id ID of the network. Can be null to default to the current network ID. * @param string[] $options An array of option names to be loaded. */ function wp_prime_network_option_caches( $network_id, array $options ) { global $wpdb; if ( wp_installing() ) { return; } if ( ! is_multisite() ) { wp_prime_option_caches( $options ); return; } if ( $network_id && ! is_numeric( $network_id ) ) { return; } $network_id = (int) $network_id; // Fallback to the current network if a network ID is not specified. if ( ! $network_id ) { $network_id = get_current_network_id(); } $cache_keys = array(); foreach ( $options as $option ) { $cache_keys[ $option ] = "{$network_id}:{$option}"; } $cache_group = 'site-options'; $cached_options = wp_cache_get_multiple( array_values( $cache_keys ), $cache_group ); $notoptions_key = "$network_id:notoptions"; $notoptions = wp_cache_get( $notoptions_key, $cache_group ); if ( ! is_array( $notoptions ) ) { $notoptions = array(); } // Filter options that are not in the cache. $options_to_prime = array(); foreach ( $cache_keys as $option => $cache_key ) { if ( ( ! isset( $cached_options[ $cache_key ] ) || false === $cached_options[ $cache_key ] ) && ! isset( $notoptions[ $option ] ) ) { $options_to_prime[] = $option; } } // Bail early if there are no options to be loaded. if ( empty( $options_to_prime ) ) { return; } $query_args = $options_to_prime; $query_args[] = $network_id; $results = $wpdb->get_results( $wpdb->prepare( sprintf( "SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN (%s) AND site_id = %s", implode( ',', array_fill( 0, count( $options_to_prime ), '%s' ) ), '%d' ), $query_args ) ); $data = array(); $options_found = array(); foreach ( $results as $result ) { $key = $result->meta_key; $cache_key = $cache_keys[ $key ]; $data[ $cache_key ] = maybe_unserialize( $result->meta_value ); $options_found[] = $key; } wp_cache_set_multiple( $data, $cache_group ); // If all options were found, no need to update `notoptions` cache. if ( count( $options_found ) === count( $options_to_prime ) ) { return; } $options_not_found = array_diff( $options_to_prime, $options_found ); // Add the options that were not found to the cache. $update_notoptions = false; foreach ( $options_not_found as $option_name ) { if ( ! isset( $notoptions[ $option_name ] ) ) { $notoptions[ $option_name ] = true; $update_notoptions = true; } } // Only update the cache if it was modified. if ( $update_notoptions ) { wp_cache_set( $notoptions_key, $notoptions, $cache_group ); } } /** * Loads and primes caches of certain often requested network options if is_multisite(). * * @since 3.0.0 * @since 6.3.0 Also prime caches for network options when persistent object cache is enabled. * @since 6.6.0 Uses wp_prime_network_option_caches(). * * @param int $network_id Optional. Network ID of network for which to prime network options cache. Defaults to current network. */ function wp_load_core_site_options( $network_id = null ) { if ( ! is_multisite() || wp_installing() ) { return; } $core_options = array( 'site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled', 'ms_files_rewriting', 'WPLANG' ); wp_prime_network_option_caches( $network_id, $core_options ); } /** * Updates the value of an option that was already added. * * You do not need to serialize values. If the value needs to be serialized, * then it will be serialized before it is inserted into the database. * Remember, resources cannot be serialized or added as an option. * * If the option does not exist, it will be created. * This function is designed to work with or without a logged-in user. In terms of security, * plugin developers should check the current user's capabilities before updating any options. * * @since 1.0.0 * @since 4.2.0 The `$autoload` parameter was added. * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option Name of the option to update. Expected to not be SQL-escaped. * @param mixed $value Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped. * @param bool|null $autoload Optional. Whether to load the option when WordPress starts up. * Accepts a boolean, or `null` to stick with the initial value or, if no initial value is * set, to leave the decision up to default heuristics in WordPress. * For existing options, `$autoload` can only be updated using `update_option()` if `$value` * is also changed. * For backward compatibility 'yes' and 'no' are also accepted, though using these values is * deprecated. * Autoloading too many options can lead to performance problems, especially if the * options are not frequently used. For options which are accessed across several places * in the frontend, it is recommended to autoload them, by using true. * For options which are accessed only on few specific URLs, it is recommended * to not autoload them, by using false. * For non-existent options, the default is null, which means WordPress will determine * the autoload value. * @return bool True if the value was updated, false otherwise. */ function update_option( $option, $value, $autoload = null ) { global $wpdb; if ( is_scalar( $option ) ) { $option = trim( $option ); } if ( empty( $option ) ) { return false; } /* * Until a proper _deprecated_option() function can be introduced, * redirect requests to deprecated keys to the new, correct ones. */ $deprecated_keys = array( 'blacklist_keys' => 'disallowed_keys', 'comment_whitelist' => 'comment_previously_approved', ); if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { _deprecated_argument( __FUNCTION__, '5.5.0', sprintf( /* translators: 1: Deprecated option key, 2: New option key. */ __( 'The "%1$s" option key has been renamed to "%2$s".' ), $option, $deprecated_keys[ $option ] ) ); return update_option( $deprecated_keys[ $option ], $value, $autoload ); } wp_protect_special_option( $option ); if ( is_object( $value ) ) { $value = clone $value; } $value = sanitize_option( $option, $value ); $old_value = get_option( $option ); /** * Filters a specific option before its value is (maybe) serialized and updated. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.6.0 * @since 4.4.0 The `$option` parameter was added. * * @param mixed $value The new, unserialized option value. * @param mixed $old_value The old option value. * @param string $option Option name. */ $value = apply_filters( "pre_update_option_{$option}", $value, $old_value, $option ); /** * Filters an option before its value is (maybe) serialized and updated. * * @since 3.9.0 * * @param mixed $value The new, unserialized option value. * @param string $option Name of the option. * @param mixed $old_value The old option value. */ $value = apply_filters( 'pre_update_option', $value, $option, $old_value ); /* * If the new and old values are the same, no need to update. * * Unserialized values will be adequate in most cases. If the unserialized * data differs, the (maybe) serialized data is checked to avoid * unnecessary database calls for otherwise identical object instances. * * See https://core.trac.wordpress.org/ticket/38903 */ if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) { return false; } /** This filter is documented in wp-includes/option.php */ if ( apply_filters( "default_option_{$option}", false, $option, false ) === $old_value ) { return add_option( $option, $value, '', $autoload ); } $serialized_value = maybe_serialize( $value ); /** * Fires immediately before an option value is updated. * * @since 2.9.0 * * @param string $option Name of the option to update. * @param mixed $old_value The old option value. * @param mixed $value The new option value. */ do_action( 'update_option', $option, $old_value, $value ); $update_args = array( 'option_value' => $serialized_value, ); if ( null !== $autoload ) { $update_args['autoload'] = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); } else { // Retrieve the current autoload value to reevaluate it in case it was set automatically. $raw_autoload = $wpdb->get_var( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); $allow_values = array( 'auto-on', 'auto-off', 'auto' ); if ( in_array( $raw_autoload, $allow_values, true ) ) { $autoload = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); if ( $autoload !== $raw_autoload ) { $update_args['autoload'] = $autoload; } } } $result = $wpdb->update( $wpdb->options, $update_args, array( 'option_name' => $option ) ); if ( ! $result ) { return false; } $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { unset( $notoptions[ $option ] ); wp_cache_set( 'notoptions', $notoptions, 'options' ); } if ( ! wp_installing() ) { if ( ! isset( $update_args['autoload'] ) ) { // Update the cached value based on where it is currently cached. $alloptions = wp_load_alloptions( true ); if ( isset( $alloptions[ $option ] ) ) { $alloptions[ $option ] = $serialized_value; wp_cache_set( 'alloptions', $alloptions, 'options' ); } else { wp_cache_set( $option, $serialized_value, 'options' ); } } elseif ( in_array( $update_args['autoload'], wp_autoload_values_to_autoload(), true ) ) { // Delete the individual cache, then set in alloptions cache. wp_cache_delete( $option, 'options' ); $alloptions = wp_load_alloptions( true ); $alloptions[ $option ] = $serialized_value; wp_cache_set( 'alloptions', $alloptions, 'options' ); } else { // Delete the alloptions cache, then set the individual cache. $alloptions = wp_load_alloptions( true ); if ( isset( $alloptions[ $option ] ) ) { unset( $alloptions[ $option ] ); wp_cache_set( 'alloptions', $alloptions, 'options' ); } wp_cache_set( $option, $serialized_value, 'options' ); } } /** * Fires after the value of a specific option has been successfully updated. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.0.1 * @since 4.4.0 The `$option` parameter was added. * * @param mixed $old_value The old option value. * @param mixed $value The new option value. * @param string $option Option name. */ do_action( "update_option_{$option}", $old_value, $value, $option ); /** * Fires after the value of an option has been successfully updated. * * @since 2.9.0 * * @param string $option Name of the updated option. * @param mixed $old_value The old option value. * @param mixed $value The new option value. */ do_action( 'updated_option', $option, $old_value, $value ); return true; } /** * Adds a new option. * * You do not need to serialize values. If the value needs to be serialized, * then it will be serialized before it is inserted into the database. * Remember, resources cannot be serialized or added as an option. * * You can create options without values and then update the values later. * Existing options will not be updated and checks are performed to ensure that you * aren't adding a protected WordPress option. Care should be taken to not name * options the same as the ones which are protected. * * @since 1.0.0 * @since 6.6.0 The $autoload parameter's default value was changed to null. * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option Name of the option to add. Expected to not be SQL-escaped. * @param mixed $value Optional. Option value. Must be serializable if non-scalar. * Expected to not be SQL-escaped. * @param string $deprecated Optional. Description. Not used anymore. * @param bool|null $autoload Optional. Whether to load the option when WordPress starts up. * Accepts a boolean, or `null` to leave the decision up to default heuristics in * WordPress. For backward compatibility 'yes' and 'no' are also accepted, though using * these values is deprecated. * Autoloading too many options can lead to performance problems, especially if the * options are not frequently used. For options which are accessed across several places * in the frontend, it is recommended to autoload them, by using true. * For options which are accessed only on few specific URLs, it is recommended * to not autoload them, by using false. * Default is null, which means WordPress will determine the autoload value. * @return bool True if the option was added, false otherwise. */ function add_option( $option, $value = '', $deprecated = '', $autoload = null ) { global $wpdb; if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, '2.3.0' ); } if ( is_scalar( $option ) ) { $option = trim( $option ); } if ( empty( $option ) ) { return false; } /* * Until a proper _deprecated_option() function can be introduced, * redirect requests to deprecated keys to the new, correct ones. */ $deprecated_keys = array( 'blacklist_keys' => 'disallowed_keys', 'comment_whitelist' => 'comment_previously_approved', ); if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { _deprecated_argument( __FUNCTION__, '5.5.0', sprintf( /* translators: 1: Deprecated option key, 2: New option key. */ __( 'The "%1$s" option key has been renamed to "%2$s".' ), $option, $deprecated_keys[ $option ] ) ); return add_option( $deprecated_keys[ $option ], $value, $deprecated, $autoload ); } wp_protect_special_option( $option ); if ( is_object( $value ) ) { $value = clone $value; } $value = sanitize_option( $option, $value ); /* * Make sure the option doesn't already exist. * We can check the 'notoptions' cache before we ask for a DB query. */ $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) { /** This filter is documented in wp-includes/option.php */ if ( apply_filters( "default_option_{$option}", false, $option, false ) !== get_option( $option ) ) { return false; } } $serialized_value = maybe_serialize( $value ); $autoload = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); /** * Fires before an option is added. * * @since 2.9.0 * * @param string $option Name of the option to add. * @param mixed $value Value of the option. */ do_action( 'add_option', $option, $value ); $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $serialized_value, $autoload ) ); if ( ! $result ) { return false; } if ( ! wp_installing() ) { if ( in_array( $autoload, wp_autoload_values_to_autoload(), true ) ) { $alloptions = wp_load_alloptions( true ); $alloptions[ $option ] = $serialized_value; wp_cache_set( 'alloptions', $alloptions, 'options' ); } else { wp_cache_set( $option, $serialized_value, 'options' ); } } // This option exists now. $notoptions = wp_cache_get( 'notoptions', 'options' ); // Yes, again... we need it to be fresh. if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { unset( $notoptions[ $option ] ); wp_cache_set( 'notoptions', $notoptions, 'options' ); } /** * Fires after a specific option has been added. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.5.0 As `add_option_{$name}` * @since 3.0.0 * * @param string $option Name of the option to add. * @param mixed $value Value of the option. */ do_action( "add_option_{$option}", $option, $value ); /** * Fires after an option has been added. * * @since 2.9.0 * * @param string $option Name of the added option. * @param mixed $value Value of the option. */ do_action( 'added_option', $option, $value ); return true; } /** * Removes an option by name. Prevents removal of protected WordPress options. * * @since 1.2.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option Name of the option to delete. Expected to not be SQL-escaped. * @return bool True if the option was deleted, false otherwise. */ function delete_option( $option ) { global $wpdb; if ( is_scalar( $option ) ) { $option = trim( $option ); } if ( empty( $option ) ) { return false; } wp_protect_special_option( $option ); // Get the ID, if no ID then return. $row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) ); if ( is_null( $row ) ) { return false; } /** * Fires immediately before an option is deleted. * * @since 2.9.0 * * @param string $option Name of the option to delete. */ do_action( 'delete_option', $option ); $result = $wpdb->delete( $wpdb->options, array( 'option_name' => $option ) ); if ( ! wp_installing() ) { if ( in_array( $row->autoload, wp_autoload_values_to_autoload(), true ) ) { $alloptions = wp_load_alloptions( true ); if ( is_array( $alloptions ) && isset( $alloptions[ $option ] ) ) { unset( $alloptions[ $option ] ); wp_cache_set( 'alloptions', $alloptions, 'options' ); } } else { wp_cache_delete( $option, 'options' ); } $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( ! is_array( $notoptions ) ) { $notoptions = array(); } $notoptions[ $option ] = true; wp_cache_set( 'notoptions', $notoptions, 'options' ); } if ( $result ) { /** * Fires after a specific option has been deleted. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 3.0.0 * * @param string $option Name of the deleted option. */ do_action( "delete_option_{$option}", $option ); /** * Fires after an option has been deleted. * * @since 2.9.0 * * @param string $option Name of the deleted option. */ do_action( 'deleted_option', $option ); return true; } return false; } /** * Determines the appropriate autoload value for an option based on input. * * This function checks the provided autoload value and returns a standardized value * ('on', 'off', 'auto-on', 'auto-off', or 'auto') based on specific conditions. * * If no explicit autoload value is provided, the function will check for certain heuristics around the given option. * It will return `auto-on` to indicate autoloading, `auto-off` to indicate not autoloading, or `auto` if no clear * decision could be made. * * @since 6.6.0 * @access private * * @param string $option The name of the option. * @param mixed $value The value of the option to check its autoload value. * @param mixed $serialized_value The serialized value of the option to check its autoload value. * @param bool|null $autoload The autoload value to check. * Accepts 'on'|true to enable or 'off'|false to disable, or * 'auto-on', 'auto-off', or 'auto' for internal purposes. * Any other autoload value will be forced to either 'auto-on', * 'auto-off', or 'auto'. * 'yes' and 'no' are supported for backward compatibility. * @return string Returns the original $autoload value if explicit, or 'auto-on', 'auto-off', * or 'auto' depending on default heuristics. */ function wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ) { // Check if autoload is a boolean. if ( is_bool( $autoload ) ) { return $autoload ? 'on' : 'off'; } switch ( $autoload ) { case 'on': case 'yes': return 'on'; case 'off': case 'no': return 'off'; } /** * Allows to determine the default autoload value for an option where no explicit value is passed. * * @since 6.6.0 * * @param bool|null $autoload The default autoload value to set. Returning true will be set as 'auto-on' in the * database, false will be set as 'auto-off', and null will be set as 'auto'. * @param string $option The passed option name. * @param mixed $value The passed option value to be saved. */ $autoload = apply_filters( 'wp_default_autoload_value', null, $option, $value, $serialized_value ); if ( is_bool( $autoload ) ) { return $autoload ? 'auto-on' : 'auto-off'; } return 'auto'; } /** * Filters the default autoload value to disable autoloading if the option value is too large. * * @since 6.6.0 * @access private * * @param bool|null $autoload The default autoload value to set. * @param string $option The passed option name. * @param mixed $value The passed option value to be saved. * @param mixed $serialized_value The passed option value to be saved, in serialized form. * @return bool|null Potentially modified $default. */ function wp_filter_default_autoload_value_via_option_size( $autoload, $option, $value, $serialized_value ) { /** * Filters the maximum size of option value in bytes. * * @since 6.6.0 * * @param int $max_option_size The option-size threshold, in bytes. Default 150000. * @param string $option The name of the option. */ $max_option_size = (int) apply_filters( 'wp_max_autoloaded_option_size', 150000, $option ); $size = ! empty( $serialized_value ) ? strlen( $serialized_value ) : 0; if ( $size > $max_option_size ) { return false; } return $autoload; } /** * Deletes a transient. * * @since 2.8.0 * * @param string $transient Transient name. Expected to not be SQL-escaped. * @return bool True if the transient was deleted, false otherwise. */ function delete_transient( $transient ) { /** * Fires immediately before a specific transient is deleted. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * * @param string $transient Transient name. */ do_action( "delete_transient_{$transient}", $transient ); if ( wp_using_ext_object_cache() || wp_installing() ) { $result = wp_cache_delete( $transient, 'transient' ); } else { $option_timeout = '_transient_timeout_' . $transient; $option = '_transient_' . $transient; $result = delete_option( $option ); if ( $result ) { delete_option( $option_timeout ); } } if ( $result ) { /** * Fires after a transient is deleted. * * @since 3.0.0 * * @param string $transient Deleted transient name. */ do_action( 'deleted_transient', $transient ); } return $result; } /** * Retrieves the value of a transient. * * If the transient does not exist, does not have a value, or has expired, * then the return value will be false. * * @since 2.8.0 * * @param string $transient Transient name. Expected to not be SQL-escaped. * @return mixed Value of transient. */ function get_transient( $transient ) { /** * Filters the value of an existing transient before it is retrieved. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * Returning a value other than false from the filter will short-circuit retrieval * and return that value instead. * * @since 2.8.0 * @since 4.4.0 The `$transient` parameter was added * * @param mixed $pre_transient The default value to return if the transient does not exist. * Any value other than false will short-circuit the retrieval * of the transient, and return that value. * @param string $transient Transient name. */ $pre = apply_filters( "pre_transient_{$transient}", false, $transient ); if ( false !== $pre ) { return $pre; } if ( wp_using_ext_object_cache() || wp_installing() ) { $value = wp_cache_get( $transient, 'transient' ); } else { $transient_option = '_transient_' . $transient; if ( ! wp_installing() ) { // If option is not in alloptions, it is not autoloaded and thus has a timeout. $alloptions = wp_load_alloptions(); if ( ! isset( $alloptions[ $transient_option ] ) ) { $transient_timeout = '_transient_timeout_' . $transient; wp_prime_option_caches( array( $transient_option, $transient_timeout ) ); $timeout = get_option( $transient_timeout ); if ( false !== $timeout && $timeout < time() ) { delete_option( $transient_option ); delete_option( $transient_timeout ); $value = false; } } } if ( ! isset( $value ) ) { $value = get_option( $transient_option ); } } /** * Filters an existing transient's value. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 2.8.0 * @since 4.4.0 The `$transient` parameter was added * * @param mixed $value Value of transient. * @param string $transient Transient name. */ return apply_filters( "transient_{$transient}", $value, $transient ); } /** * Sets/updates the value of a transient. * * You do not need to serialize values. If the value needs to be serialized, * then it will be serialized before it is set. * * @since 2.8.0 * * @param string $transient Transient name. Expected to not be SQL-escaped. * Must be 172 characters or fewer in length. * @param mixed $value Transient value. Must be serializable if non-scalar. * Expected to not be SQL-escaped. * @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration). * @return bool True if the value was set, false otherwise. */ function set_transient( $transient, $value, $expiration = 0 ) { $expiration = (int) $expiration; /** * Filters a specific transient before its value is set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * @since 4.2.0 The `$expiration` parameter was added. * @since 4.4.0 The `$transient` parameter was added. * * @param mixed $value New value of transient. * @param int $expiration Time until expiration in seconds. * @param string $transient Transient name. */ $value = apply_filters( "pre_set_transient_{$transient}", $value, $expiration, $transient ); /** * Filters the expiration for a transient before its value is set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 4.4.0 * * @param int $expiration Time until expiration in seconds. Use 0 for no expiration. * @param mixed $value New value of transient. * @param string $transient Transient name. */ $expiration = apply_filters( "expiration_of_transient_{$transient}", $expiration, $value, $transient ); if ( wp_using_ext_object_cache() || wp_installing() ) { $result = wp_cache_set( $transient, $value, 'transient', $expiration ); } else { $transient_timeout = '_transient_timeout_' . $transient; $transient_option = '_transient_' . $transient; wp_prime_option_caches( array( $transient_option, $transient_timeout ) ); if ( false === get_option( $transient_option ) ) { $autoload = true; if ( $expiration ) { $autoload = false; add_option( $transient_timeout, time() + $expiration, '', false ); } $result = add_option( $transient_option, $value, '', $autoload ); } else { /* * If expiration is requested, but the transient has no timeout option, * delete, then re-create transient rather than update. */ $update = true; if ( $expiration ) { if ( false === get_option( $transient_timeout ) ) { delete_option( $transient_option ); add_option( $transient_timeout, time() + $expiration, '', false ); $result = add_option( $transient_option, $value, '', false ); $update = false; } else { update_option( $transient_timeout, time() + $expiration ); } } if ( $update ) { $result = update_option( $transient_option, $value ); } } } if ( $result ) { /** * Fires after the value for a specific transient has been set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * @since 3.6.0 The `$value` and `$expiration` parameters were added. * @since 4.4.0 The `$transient` parameter was added. * * @param mixed $value Transient value. * @param int $expiration Time until expiration in seconds. * @param string $transient The name of the transient. */ do_action( "set_transient_{$transient}", $value, $expiration, $transient ); /** * Fires after the value for a transient has been set. * * @since 6.8.0 * * @param string $transient The name of the transient. * @param mixed $value Transient value. * @param int $expiration Time until expiration in seconds. */ do_action( 'set_transient', $transient, $value, $expiration ); /** * Fires after the transient is set. * * @since 3.0.0 * @since 3.6.0 The `$value` and `$expiration` parameters were added. * @deprecated 6.8.0 Use {@see 'set_transient'} instead. * * @param string $transient The name of the transient. * @param mixed $value Transient value. * @param int $expiration Time until expiration in seconds. */ do_action_deprecated( 'setted_transient', array( $transient, $value, $expiration ), '6.8.0', 'set_transient' ); } return $result; } /** * Deletes all expired transients. * * Note that this function won't do anything if an external object cache is in use. * * The multi-table delete syntax is used to delete the transient record * from table a, and the corresponding transient_timeout record from table b. * * @global wpdb $wpdb WordPress database abstraction object. * * @since 4.9.0 * * @param bool $force_db Optional. Force cleanup to run against the database even when an external object cache is used. */ function delete_expired_transients( $force_db = false ) { global $wpdb; if ( ! $force_db && wp_using_ext_object_cache() ) { return; } $wpdb->query( $wpdb->prepare( "DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b WHERE a.option_name LIKE %s AND a.option_name NOT LIKE %s AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) ) AND b.option_value < %d", $wpdb->esc_like( '_transient_' ) . '%', $wpdb->esc_like( '_transient_timeout_' ) . '%', time() ) ); if ( ! is_multisite() ) { // Single site stores site transients in the options table. $wpdb->query( $wpdb->prepare( "DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b WHERE a.option_name LIKE %s AND a.option_name NOT LIKE %s AND b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) ) AND b.option_value < %d", $wpdb->esc_like( '_site_transient_' ) . '%', $wpdb->esc_like( '_site_transient_timeout_' ) . '%', time() ) ); } elseif ( is_multisite() && is_main_site() && is_main_network() ) { // Multisite stores site transients in the sitemeta table. $wpdb->query( $wpdb->prepare( "DELETE a, b FROM {$wpdb->sitemeta} a, {$wpdb->sitemeta} b WHERE a.meta_key LIKE %s AND a.meta_key NOT LIKE %s AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) ) AND b.meta_value < %d", $wpdb->esc_like( '_site_transient_' ) . '%', $wpdb->esc_like( '_site_transient_timeout_' ) . '%', time() ) ); } } /** * Saves and restores user interface settings stored in a cookie. * * Checks if the current user-settings cookie is updated and stores it. When no * cookie exists (different browser used), adds the last saved cookie restoring * the settings. * * @since 2.7.0 */ function wp_user_settings() { if ( ! is_admin() || wp_doing_ajax() ) { return; } $user_id = get_current_user_id(); if ( ! $user_id ) { return; } if ( ! is_user_member_of_blog() ) { return; } $settings = (string) get_user_option( 'user-settings', $user_id ); if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) { $cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] ); // No change or both empty. if ( $cookie === $settings ) { return; } $last_saved = (int) get_user_option( 'user-settings-time', $user_id ); $current = 0; if ( isset( $_COOKIE[ 'wp-settings-time-' . $user_id ] ) ) { $current = (int) preg_replace( '/[^0-9]/', '', $_COOKIE[ 'wp-settings-time-' . $user_id ] ); } // The cookie is newer than the saved value. Update the user_option and leave the cookie as-is. if ( $current > $last_saved ) { update_user_option( $user_id, 'user-settings', $cookie, false ); update_user_option( $user_id, 'user-settings-time', time() - 5, false ); return; } } // The cookie is not set in the current browser or the saved value is newer. $secure = ( 'https' === parse_url( admin_url(), PHP_URL_SCHEME ) ); setcookie( 'wp-settings-' . $user_id, $settings, time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure ); setcookie( 'wp-settings-time-' . $user_id, time(), time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure ); $_COOKIE[ 'wp-settings-' . $user_id ] = $settings; } /** * Retrieves user interface setting value based on setting name. * * @since 2.7.0 * * @param string $name The name of the setting. * @param string|false $default_value Optional. Default value to return when $name is not set. Default false. * @return mixed The last saved user setting or the default value/false if it doesn't exist. */ function get_user_setting( $name, $default_value = false ) { $all_user_settings = get_all_user_settings(); return isset( $all_user_settings[ $name ] ) ? $all_user_settings[ $name ] : $default_value; } /** * Adds or updates user interface setting. * * Both `$name` and `$value` can contain only ASCII letters, numbers, hyphens, and underscores. * * This function has to be used before any output has started as it calls `setcookie()`. * * @since 2.8.0 * * @param string $name The name of the setting. * @param string $value The value for the setting. * @return bool|null True if set successfully, false otherwise. * Null if the current user is not a member of the site. */ function set_user_setting( $name, $value ) { if ( headers_sent() ) { return false; } $all_user_settings = get_all_user_settings(); $all_user_settings[ $name ] = $value; return wp_set_all_user_settings( $all_user_settings ); } /** * Deletes user interface settings. * * Deleting settings would reset them to the defaults. * * This function has to be used before any output has started as it calls `setcookie()`. * * @since 2.7.0 * * @param string $names The name or array of names of the setting to be deleted. * @return bool|null True if deleted successfully, false otherwise. * Null if the current user is not a member of the site. */ function delete_user_setting( $names ) { if ( headers_sent() ) { return false; } $all_user_settings = get_all_user_settings(); $names = (array) $names; $deleted = false; foreach ( $names as $name ) { if ( isset( $all_user_settings[ $name ] ) ) { unset( $all_user_settings[ $name ] ); $deleted = true; } } if ( $deleted ) { return wp_set_all_user_settings( $all_user_settings ); } return false; } /** * Retrieves all user interface settings. * * @since 2.7.0 * * @global array $_updated_user_settings * * @return array The last saved user settings or empty array. */ function get_all_user_settings() { global $_updated_user_settings; $user_id = get_current_user_id(); if ( ! $user_id ) { return array(); } if ( isset( $_updated_user_settings ) && is_array( $_updated_user_settings ) ) { return $_updated_user_settings; } $user_settings = array(); if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) { $cookie = preg_replace( '/[^A-Za-z0-9=&_-]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] ); if ( strpos( $cookie, '=' ) ) { // '=' cannot be 1st char. parse_str( $cookie, $user_settings ); } } else { $option = get_user_option( 'user-settings', $user_id ); if ( $option && is_string( $option ) ) { parse_str( $option, $user_settings ); } } $_updated_user_settings = $user_settings; return $user_settings; } /** * Private. Sets all user interface settings. * * @since 2.8.0 * @access private * * @global array $_updated_user_settings * * @param array $user_settings User settings. * @return bool|null True if set successfully, false if the current user could not be found. * Null if the current user is not a member of the site. */ function wp_set_all_user_settings( $user_settings ) { global $_updated_user_settings; $user_id = get_current_user_id(); if ( ! $user_id ) { return false; } if ( ! is_user_member_of_blog() ) { return; } $settings = ''; foreach ( $user_settings as $name => $value ) { $_name = preg_replace( '/[^A-Za-z0-9_-]+/', '', $name ); $_value = preg_replace( '/[^A-Za-z0-9_-]+/', '', $value ); if ( ! empty( $_name ) ) { $settings .= $_name . '=' . $_value . '&'; } } $settings = rtrim( $settings, '&' ); parse_str( $settings, $_updated_user_settings ); update_user_option( $user_id, 'user-settings', $settings, false ); update_user_option( $user_id, 'user-settings-time', time(), false ); return true; } /** * Deletes the user settings of the current user. * * @since 2.7.0 */ function delete_all_user_settings() { $user_id = get_current_user_id(); if ( ! $user_id ) { return; } update_user_option( $user_id, 'user-settings', '', false ); setcookie( 'wp-settings-' . $user_id, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); } /** * Retrieve an option value for the current network based on name of option. * * @since 2.8.0 * @since 4.4.0 The `$use_cache` parameter was deprecated. * @since 4.4.0 Modified into wrapper for get_network_option() * * @see get_network_option() * * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. * @param mixed $default_value Optional. Value to return if the option doesn't exist. Default false. * @param bool $deprecated Whether to use cache. Multisite only. Always set to true. * @return mixed Value set for the option. */ function get_site_option( $option, $default_value = false, $deprecated = true ) { return get_network_option( null, $option, $default_value ); } /** * Adds a new option for the current network. * * Existing options will not be updated. Note that prior to 3.3 this wasn't the case. * * @since 2.8.0 * @since 4.4.0 Modified into wrapper for add_network_option() * * @see add_network_option() * * @param string $option Name of the option to add. Expected to not be SQL-escaped. * @param mixed $value Option value, can be anything. Expected to not be SQL-escaped. * @return bool True if the option was added, false otherwise. */ function add_site_option( $option, $value ) { return add_network_option( null, $option, $value ); } /** * Removes an option by name for the current network. * * @since 2.8.0 * @since 4.4.0 Modified into wrapper for delete_network_option() * * @see delete_network_option() * * @param string $option Name of the option to delete. Expected to not be SQL-escaped. * @return bool True if the option was deleted, false otherwise. */ function delete_site_option( $option ) { return delete_network_option( null, $option ); } /** * Updates the value of an option that was already added for the current network. * * @since 2.8.0 * @since 4.4.0 Modified into wrapper for update_network_option() * * @see update_network_option() * * @param string $option Name of the option. Expected to not be SQL-escaped. * @param mixed $value Option value. Expected to not be SQL-escaped. * @return bool True if the value was updated, false otherwise. */ function update_site_option( $option, $value ) { return update_network_option( null, $option, $value ); } /** * Retrieves a network's option value based on the option name. * * @since 4.4.0 * * @see get_option() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|null $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. * @param mixed $default_value Optional. Value to return if the option doesn't exist. Default false. * @return mixed Value set for the option. */ function get_network_option( $network_id, $option, $default_value = false ) { global $wpdb; if ( $network_id && ! is_numeric( $network_id ) ) { return false; } $network_id = (int) $network_id; // Fallback to the current network if a network ID is not specified. if ( ! $network_id ) { $network_id = get_current_network_id(); } /** * Filters the value of an existing network option before it is retrieved. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * Returning a value other than false from the filter will short-circuit retrieval * and return that value instead. * * @since 2.9.0 As 'pre_site_option_' . $key * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * @since 4.9.0 The `$default_value` parameter was added. * * @param mixed $pre_site_option The value to return instead of the option value. This differs from * `$default_value`, which is used as the fallback value in the event * the option doesn't exist elsewhere in get_network_option(). * Default false (to skip past the short-circuit). * @param string $option Option name. * @param int $network_id ID of the network. * @param mixed $default_value The fallback value to return if the option does not exist. * Default false. */ $pre = apply_filters( "pre_site_option_{$option}", false, $option, $network_id, $default_value ); if ( false !== $pre ) { return $pre; } // Prevent non-existent options from triggering multiple queries. $notoptions_key = "$network_id:notoptions"; $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { /** * Filters the value of a specific default network option. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 3.4.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * * @param mixed $default_value The value to return if the site option does not exist * in the database. * @param string $option Option name. * @param int $network_id ID of the network. */ return apply_filters( "default_site_option_{$option}", $default_value, $option, $network_id ); } if ( ! is_multisite() ) { /** This filter is documented in wp-includes/option.php */ $default_value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id ); $value = get_option( $option, $default_value ); } else { $cache_key = "$network_id:$option"; $value = wp_cache_get( $cache_key, 'site-options' ); if ( ! isset( $value ) || false === $value ) { $row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $network_id ) ); // Has to be get_row() instead of get_var() because of funkiness with 0, false, null values. if ( is_object( $row ) ) { $value = $row->meta_value; $value = maybe_unserialize( $value ); wp_cache_set( $cache_key, $value, 'site-options' ); } else { if ( ! is_array( $notoptions ) ) { $notoptions = array(); } $notoptions[ $option ] = true; wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); /** This filter is documented in wp-includes/option.php */ $value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id ); } } } if ( ! is_array( $notoptions ) ) { $notoptions = array(); wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); } /** * Filters the value of an existing network option. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As 'site_option_' . $key * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * * @param mixed $value Value of network option. * @param string $option Option name. * @param int $network_id ID of the network. */ return apply_filters( "site_option_{$option}", $value, $option, $network_id ); } /** * Adds a new network option. * * Existing options will not be updated. * * @since 4.4.0 * * @see add_option() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|null $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of the option to add. Expected to not be SQL-escaped. * @param mixed $value Option value, can be anything. Expected to not be SQL-escaped. * @return bool True if the option was added, false otherwise. */ function add_network_option( $network_id, $option, $value ) { global $wpdb; if ( $network_id && ! is_numeric( $network_id ) ) { return false; } $network_id = (int) $network_id; // Fallback to the current network if a network ID is not specified. if ( ! $network_id ) { $network_id = get_current_network_id(); } wp_protect_special_option( $option ); /** * Filters the value of a specific network option before it is added. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As 'pre_add_site_option_' . $key * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * * @param mixed $value Value of network option. * @param string $option Option name. * @param int $network_id ID of the network. */ $value = apply_filters( "pre_add_site_option_{$option}", $value, $option, $network_id ); $notoptions_key = "$network_id:notoptions"; if ( ! is_multisite() ) { $result = add_option( $option, $value, '', false ); } else { $cache_key = "$network_id:$option"; /* * Make sure the option doesn't already exist. * We can check the 'notoptions' cache before we ask for a DB query. */ $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) { if ( false !== get_network_option( $network_id, $option, false ) ) { return false; } } $value = sanitize_option( $option, $value ); $serialized_value = maybe_serialize( $value ); $result = $wpdb->insert( $wpdb->sitemeta, array( 'site_id' => $network_id, 'meta_key' => $option, 'meta_value' => $serialized_value, ) ); if ( ! $result ) { return false; } wp_cache_set( $cache_key, $value, 'site-options' ); // This option exists now. $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); // Yes, again... we need it to be fresh. if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { unset( $notoptions[ $option ] ); wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); } } if ( $result ) { /** * Fires after a specific network option has been successfully added. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As "add_site_option_{$key}" * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param mixed $value Value of the network option. * @param int $network_id ID of the network. */ do_action( "add_site_option_{$option}", $option, $value, $network_id ); /** * Fires after a network option has been successfully added. * * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param mixed $value Value of the network option. * @param int $network_id ID of the network. */ do_action( 'add_site_option', $option, $value, $network_id ); return true; } return false; } /** * Removes a network option by name. * * @since 4.4.0 * * @see delete_option() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|null $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of the option to delete. Expected to not be SQL-escaped. * @return bool True if the option was deleted, false otherwise. */ function delete_network_option( $network_id, $option ) { global $wpdb; if ( $network_id && ! is_numeric( $network_id ) ) { return false; } $network_id = (int) $network_id; // Fallback to the current network if a network ID is not specified. if ( ! $network_id ) { $network_id = get_current_network_id(); } /** * Fires immediately before a specific network option is deleted. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Option name. * @param int $network_id ID of the network. */ do_action( "pre_delete_site_option_{$option}", $option, $network_id ); if ( ! is_multisite() ) { $result = delete_option( $option ); } else { $row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $network_id ) ); if ( is_null( $row ) || ! $row->meta_id ) { return false; } $cache_key = "$network_id:$option"; wp_cache_delete( $cache_key, 'site-options' ); $result = $wpdb->delete( $wpdb->sitemeta, array( 'meta_key' => $option, 'site_id' => $network_id, ) ); if ( $result ) { $notoptions_key = "$network_id:notoptions"; $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); if ( ! is_array( $notoptions ) ) { $notoptions = array(); } $notoptions[ $option ] = true; wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); } } if ( $result ) { /** * Fires after a specific network option has been deleted. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As "delete_site_option_{$key}" * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param int $network_id ID of the network. */ do_action( "delete_site_option_{$option}", $option, $network_id ); /** * Fires after a network option has been deleted. * * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param int $network_id ID of the network. */ do_action( 'delete_site_option', $option, $network_id ); return true; } return false; } /** * Updates the value of a network option that was already added. * * @since 4.4.0 * * @see update_option() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|null $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of the option. Expected to not be SQL-escaped. * @param mixed $value Option value. Expected to not be SQL-escaped. * @return bool True if the value was updated, false otherwise. */ function update_network_option( $network_id, $option, $value ) { global $wpdb; if ( $network_id && ! is_numeric( $network_id ) ) { return false; } $network_id = (int) $network_id; // Fallback to the current network if a network ID is not specified. if ( ! $network_id ) { $network_id = get_current_network_id(); } wp_protect_special_option( $option ); $old_value = get_network_option( $network_id, $option ); /** * Filters a specific network option before its value is updated. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As 'pre_update_site_option_' . $key * @since 3.0.0 * @since 4.4.0 The `$option` parameter was added. * @since 4.7.0 The `$network_id` parameter was added. * * @param mixed $value New value of the network option. * @param mixed $old_value Old value of the network option. * @param string $option Option name. * @param int $network_id ID of the network. */ $value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id ); /* * If the new and old values are the same, no need to update. * * Unserialized values will be adequate in most cases. If the unserialized * data differs, the (maybe) serialized data is checked to avoid * unnecessary database calls for otherwise identical object instances. * * See https://core.trac.wordpress.org/ticket/44956 */ if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) { return false; } if ( false === $old_value ) { return add_network_option( $network_id, $option, $value ); } $notoptions_key = "$network_id:notoptions"; $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { unset( $notoptions[ $option ] ); wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); } if ( ! is_multisite() ) { $result = update_option( $option, $value, false ); } else { $value = sanitize_option( $option, $value ); $serialized_value = maybe_serialize( $value ); $result = $wpdb->update( $wpdb->sitemeta, array( 'meta_value' => $serialized_value ), array( 'site_id' => $network_id, 'meta_key' => $option, ) ); if ( $result ) { $cache_key = "$network_id:$option"; wp_cache_set( $cache_key, $value, 'site-options' ); } } if ( $result ) { /** * Fires after the value of a specific network option has been successfully updated. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * @since 2.9.0 As "update_site_option_{$key}" * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param mixed $value Current value of the network option. * @param mixed $old_value Old value of the network option. * @param int $network_id ID of the network. */ do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id ); /** * Fires after the value of a network option has been successfully updated. * * @since 3.0.0 * @since 4.7.0 The `$network_id` parameter was added. * * @param string $option Name of the network option. * @param mixed $value Current value of the network option. * @param mixed $old_value Old value of the network option. * @param int $network_id ID of the network. */ do_action( 'update_site_option', $option, $value, $old_value, $network_id ); return true; } return false; } /** * Deletes a site transient. * * @since 2.9.0 * * @param string $transient Transient name. Expected to not be SQL-escaped. * @return bool True if the transient was deleted, false otherwise. */ function delete_site_transient( $transient ) { /** * Fires immediately before a specific site transient is deleted. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * * @param string $transient Transient name. */ do_action( "delete_site_transient_{$transient}", $transient ); if ( wp_using_ext_object_cache() || wp_installing() ) { $result = wp_cache_delete( $transient, 'site-transient' ); } else { $option_timeout = '_site_transient_timeout_' . $transient; $option = '_site_transient_' . $transient; $result = delete_site_option( $option ); if ( $result ) { delete_site_option( $option_timeout ); } } if ( $result ) { /** * Fires after a transient is deleted. * * @since 3.0.0 * * @param string $transient Deleted transient name. */ do_action( 'deleted_site_transient', $transient ); } return $result; } /** * Retrieves the value of a site transient. * * If the transient does not exist, does not have a value, or has expired, * then the return value will be false. * * @since 2.9.0 * * @see get_transient() * * @param string $transient Transient name. Expected to not be SQL-escaped. * @return mixed Value of transient. */ function get_site_transient( $transient ) { /** * Filters the value of an existing site transient before it is retrieved. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * Returning a value other than boolean false will short-circuit retrieval and * return that value instead. * * @since 2.9.0 * @since 4.4.0 The `$transient` parameter was added. * * @param mixed $pre_site_transient The default value to return if the site transient does not exist. * Any value other than false will short-circuit the retrieval * of the transient, and return that value. * @param string $transient Transient name. */ $pre = apply_filters( "pre_site_transient_{$transient}", false, $transient ); if ( false !== $pre ) { return $pre; } if ( wp_using_ext_object_cache() || wp_installing() ) { $value = wp_cache_get( $transient, 'site-transient' ); } else { // Core transients that do not have a timeout. Listed here so querying timeouts can be avoided. $no_timeout = array( 'update_core', 'update_plugins', 'update_themes' ); $transient_option = '_site_transient_' . $transient; if ( ! in_array( $transient, $no_timeout, true ) ) { $transient_timeout = '_site_transient_timeout_' . $transient; wp_prime_site_option_caches( array( $transient_option, $transient_timeout ) ); $timeout = get_site_option( $transient_timeout ); if ( false !== $timeout && $timeout < time() ) { delete_site_option( $transient_option ); delete_site_option( $transient_timeout ); $value = false; } } if ( ! isset( $value ) ) { $value = get_site_option( $transient_option ); } } /** * Filters the value of an existing site transient. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 2.9.0 * @since 4.4.0 The `$transient` parameter was added. * * @param mixed $value Value of site transient. * @param string $transient Transient name. */ return apply_filters( "site_transient_{$transient}", $value, $transient ); } /** * Sets/updates the value of a site transient. * * You do not need to serialize values. If the value needs to be serialized, * then it will be serialized before it is set. * * @since 2.9.0 * * @see set_transient() * * @param string $transient Transient name. Expected to not be SQL-escaped. Must be * 167 characters or fewer in length. * @param mixed $value Transient value. Expected to not be SQL-escaped. * @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration). * @return bool True if the value was set, false otherwise. */ function set_site_transient( $transient, $value, $expiration = 0 ) { /** * Filters the value of a specific site transient before it is set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * @since 4.4.0 The `$transient` parameter was added. * * @param mixed $value New value of site transient. * @param string $transient Transient name. */ $value = apply_filters( "pre_set_site_transient_{$transient}", $value, $transient ); $expiration = (int) $expiration; /** * Filters the expiration for a site transient before its value is set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 4.4.0 * * @param int $expiration Time until expiration in seconds. Use 0 for no expiration. * @param mixed $value New value of site transient. * @param string $transient Transient name. */ $expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient ); if ( wp_using_ext_object_cache() || wp_installing() ) { $result = wp_cache_set( $transient, $value, 'site-transient', $expiration ); } else { $transient_timeout = '_site_transient_timeout_' . $transient; $option = '_site_transient_' . $transient; wp_prime_site_option_caches( array( $option, $transient_timeout ) ); if ( false === get_site_option( $option ) ) { if ( $expiration ) { add_site_option( $transient_timeout, time() + $expiration ); } $result = add_site_option( $option, $value ); } else { if ( $expiration ) { update_site_option( $transient_timeout, time() + $expiration ); } $result = update_site_option( $option, $value ); } } if ( $result ) { /** * Fires after the value for a specific site transient has been set. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * @since 3.0.0 * @since 4.4.0 The `$transient` parameter was added * * @param mixed $value Site transient value. * @param int $expiration Time until expiration in seconds. * @param string $transient Transient name. */ do_action( "set_site_transient_{$transient}", $value, $expiration, $transient ); /** * Fires after the value for a site transient has been set. * * @since 6.8.0 * * @param string $transient The name of the site transient. * @param mixed $value Site transient value. * @param int $expiration Time until expiration in seconds. */ do_action( 'set_site_transient', $transient, $value, $expiration ); /** * Fires after the value for a site transient has been set. * * @since 3.0.0 * @deprecated 6.8.0 Use {@see 'set_site_transient'} instead. * * @param string $transient The name of the site transient. * @param mixed $value Site transient value. * @param int $expiration Time until expiration in seconds. */ do_action_deprecated( 'setted_site_transient', array( $transient, $value, $expiration ), '6.8.0', 'set_site_transient' ); } return $result; } /** * Registers default settings available in WordPress. * * The settings registered here are primarily useful for the REST API, so this * does not encompass all settings available in WordPress. * * @since 4.7.0 * @since 6.0.1 The `show_on_front`, `page_on_front`, and `page_for_posts` options were added. */ function register_initial_settings() { register_setting( 'general', 'blogname', array( 'show_in_rest' => array( 'name' => 'title', ), 'type' => 'string', 'label' => __( 'Title' ), 'description' => __( 'Site title.' ), ) ); register_setting( 'general', 'blogdescription', array( 'show_in_rest' => array( 'name' => 'description', ), 'type' => 'string', 'label' => __( 'Tagline' ), 'description' => __( 'Site tagline.' ), ) ); if ( ! is_multisite() ) { register_setting( 'general', 'siteurl', array( 'show_in_rest' => array( 'name' => 'url', 'schema' => array( 'format' => 'uri', ), ), 'type' => 'string', 'description' => __( 'Site URL.' ), ) ); } if ( ! is_multisite() ) { register_setting( 'general', 'admin_email', array( 'show_in_rest' => array( 'name' => 'email', 'schema' => array( 'format' => 'email', ), ), 'type' => 'string', 'description' => __( 'This address is used for admin purposes, like new user notification.' ), ) ); } register_setting( 'general', 'timezone_string', array( 'show_in_rest' => array( 'name' => 'timezone', ), 'type' => 'string', 'description' => __( 'A city in the same timezone as you.' ), ) ); register_setting( 'general', 'date_format', array( 'show_in_rest' => true, 'type' => 'string', 'description' => __( 'A date format for all date strings.' ), ) ); register_setting( 'general', 'time_format', array( 'show_in_rest' => true, 'type' => 'string', 'description' => __( 'A time format for all time strings.' ), ) ); register_setting( 'general', 'start_of_week', array( 'show_in_rest' => true, 'type' => 'integer', 'description' => __( 'A day number of the week that the week should start on.' ), ) ); register_setting( 'general', 'WPLANG', array( 'show_in_rest' => array( 'name' => 'language', ), 'type' => 'string', 'description' => __( 'WordPress locale code.' ), 'default' => 'en_US', ) ); register_setting( 'writing', 'use_smilies', array( 'show_in_rest' => true, 'type' => 'boolean', 'description' => __( 'Convert emoticons like :-) and :-P to graphics on display.' ), 'default' => true, ) ); register_setting( 'writing', 'default_category', array( 'show_in_rest' => true, 'type' => 'integer', 'description' => __( 'Default post category.' ), ) ); register_setting( 'writing', 'default_post_format', array( 'show_in_rest' => true, 'type' => 'string', 'description' => __( 'Default post format.' ), ) ); register_setting( 'reading', 'posts_per_page', array( 'show_in_rest' => true, 'type' => 'integer', 'label' => __( 'Maximum posts per page' ), 'description' => __( 'Blog pages show at most.' ), 'default' => 10, ) ); register_setting( 'reading', 'show_on_front', array( 'show_in_rest' => true, 'type' => 'string', 'label' => __( 'Show on front' ), 'description' => __( 'What to show on the front page' ), ) ); register_setting( 'reading', 'page_on_front', array( 'show_in_rest' => true, 'type' => 'integer', 'label' => __( 'Page on front' ), 'description' => __( 'The ID of the page that should be displayed on the front page' ), ) ); register_setting( 'reading', 'page_for_posts', array( 'show_in_rest' => true, 'type' => 'integer', 'description' => __( 'The ID of the page that should display the latest posts' ), ) ); register_setting( 'discussion', 'default_ping_status', array( 'show_in_rest' => array( 'schema' => array( 'enum' => array( 'open', 'closed' ), ), ), 'type' => 'string', 'description' => __( 'Allow link notifications from other blogs (pingbacks and trackbacks) on new articles.' ), ) ); register_setting( 'discussion', 'default_comment_status', array( 'show_in_rest' => array( 'schema' => array( 'enum' => array( 'open', 'closed' ), ), ), 'type' => 'string', 'label' => __( 'Allow comments on new posts' ), 'description' => __( 'Allow people to submit comments on new posts.' ), ) ); } /** * Registers a setting and its data. * * @since 2.7.0 * @since 3.0.0 The `misc` option group was deprecated. * @since 3.5.0 The `privacy` option group was deprecated. * @since 4.7.0 `$args` can be passed to set flags on the setting, similar to `register_meta()`. * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`. * Please consider writing more inclusive code. * @since 6.6.0 Added the `label` argument. * * @global array $new_allowed_options * @global array $wp_registered_settings * * @param string $option_group A settings group name. Should correspond to an allowed option key name. * Default allowed option key names include 'general', 'discussion', 'media', * 'reading', 'writing', and 'options'. * @param string $option_name The name of an option to sanitize and save. * @param array $args { * Data used to describe the setting when registered. * * @type string $type The type of data associated with this setting. * Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'. * @type string $label A label of the data attached to this setting. * @type string $description A description of the data attached to this setting. * @type callable $sanitize_callback A callback function that sanitizes the option's value. * @type bool|array $show_in_rest Whether data associated with this setting should be included in the REST API. * When registering complex settings, this argument may optionally be an * array with a 'schema' key. * @type mixed $default Default value when calling `get_option()`. * } */ function register_setting( $option_group, $option_name, $args = array() ) { global $new_allowed_options, $wp_registered_settings; /* * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`. * Please consider writing more inclusive code. */ $GLOBALS['new_whitelist_options'] = &$new_allowed_options; $defaults = array( 'type' => 'string', 'group' => $option_group, 'label' => '', 'description' => '', 'sanitize_callback' => null, 'show_in_rest' => false, ); // Back-compat: old sanitize callback is added. if ( is_callable( $args ) ) { $args = array( 'sanitize_callback' => $args, ); } /** * Filters the registration arguments when registering a setting. * * @since 4.7.0 * * @param array $args Array of setting registration arguments. * @param array $defaults Array of default arguments. * @param string $option_group Setting group. * @param string $option_name Setting name. */ $args = apply_filters( 'register_setting_args', $args, $defaults, $option_group, $option_name ); $args = wp_parse_args( $args, $defaults ); // Require an item schema when registering settings with an array type. if ( false !== $args['show_in_rest'] && 'array' === $args['type'] && ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) ) { _doing_it_wrong( __FUNCTION__, __( 'When registering an "array" setting to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.4.0' ); } if ( ! is_array( $wp_registered_settings ) ) { $wp_registered_settings = array(); } if ( 'misc' === $option_group ) { _deprecated_argument( __FUNCTION__, '3.0.0', sprintf( /* translators: %s: misc */ __( 'The "%s" options group has been removed. Use another settings group.' ), 'misc' ) ); $option_group = 'general'; } if ( 'privacy' === $option_group ) { _deprecated_argument( __FUNCTION__, '3.5.0', sprintf( /* translators: %s: privacy */ __( 'The "%s" options group has been removed. Use another settings group.' ), 'privacy' ) ); $option_group = 'reading'; } $new_allowed_options[ $option_group ][] = $option_name; if ( ! empty( $args['sanitize_callback'] ) ) { add_filter( "sanitize_option_{$option_name}", $args['sanitize_callback'] ); } if ( array_key_exists( 'default', $args ) ) { add_filter( "default_option_{$option_name}", 'filter_default_option', 10, 3 ); } /** * Fires immediately before the setting is registered but after its filters are in place. * * @since 5.5.0 * * @param string $option_group Setting group. * @param string $option_name Setting name. * @param array $args Array of setting registration arguments. */ do_action( 'register_setting', $option_group, $option_name, $args ); $wp_registered_settings[ $option_name ] = $args; } /** * Unregisters a setting. * * @since 2.7.0 * @since 4.7.0 `$sanitize_callback` was deprecated. The callback from `register_setting()` is now used instead. * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`. * Please consider writing more inclusive code. * * @global array $new_allowed_options * @global array $wp_registered_settings * * @param string $option_group The settings group name used during registration. * @param string $option_name The name of the option to unregister. * @param callable $deprecated Optional. Deprecated. */ function unregister_setting( $option_group, $option_name, $deprecated = '' ) { global $new_allowed_options, $wp_registered_settings; /* * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`. * Please consider writing more inclusive code. */ $GLOBALS['new_whitelist_options'] = &$new_allowed_options; if ( 'misc' === $option_group ) { _deprecated_argument( __FUNCTION__, '3.0.0', sprintf( /* translators: %s: misc */ __( 'The "%s" options group has been removed. Use another settings group.' ), 'misc' ) ); $option_group = 'general'; } if ( 'privacy' === $option_group ) { _deprecated_argument( __FUNCTION__, '3.5.0', sprintf( /* translators: %s: privacy */ __( 'The "%s" options group has been removed. Use another settings group.' ), 'privacy' ) ); $option_group = 'reading'; } $pos = false; if ( isset( $new_allowed_options[ $option_group ] ) ) { $pos = array_search( $option_name, (array) $new_allowed_options[ $option_group ], true ); } if ( false !== $pos ) { unset( $new_allowed_options[ $option_group ][ $pos ] ); } if ( '' !== $deprecated ) { _deprecated_argument( __FUNCTION__, '4.7.0', sprintf( /* translators: 1: $sanitize_callback, 2: register_setting() */ __( '%1$s is deprecated. The callback from %2$s is used instead.' ), '<code>$sanitize_callback</code>', '<code>register_setting()</code>' ) ); remove_filter( "sanitize_option_{$option_name}", $deprecated ); } if ( isset( $wp_registered_settings[ $option_name ] ) ) { // Remove the sanitize callback if one was set during registration. if ( ! empty( $wp_registered_settings[ $option_name ]['sanitize_callback'] ) ) { remove_filter( "sanitize_option_{$option_name}", $wp_registered_settings[ $option_name ]['sanitize_callback'] ); } // Remove the default filter if a default was provided during registration. if ( array_key_exists( 'default', $wp_registered_settings[ $option_name ] ) ) { remove_filter( "default_option_{$option_name}", 'filter_default_option', 10 ); } /** * Fires immediately before the setting is unregistered and after its filters have been removed. * * @since 5.5.0 * * @param string $option_group Setting group. * @param string $option_name Setting name. */ do_action( 'unregister_setting', $option_group, $option_name ); unset( $wp_registered_settings[ $option_name ] ); } } /** * Retrieves an array of registered settings. * * @since 4.7.0 * * @global array $wp_registered_settings * * @return array List of registered settings, keyed by option name. */ function get_registered_settings() { global $wp_registered_settings; if ( ! is_array( $wp_registered_settings ) ) { return array(); } return $wp_registered_settings; } /** * Filters the default value for the option. * * For settings which register a default setting in `register_setting()`, this * function is added as a filter to `default_option_{$option}`. * * @since 4.7.0 * * @param mixed $default_value Existing default value to return. * @param string $option Option name. * @param bool $passed_default Was `get_option()` passed a default value? * @return mixed Filtered default value. */ function filter_default_option( $default_value, $option, $passed_default ) { if ( $passed_default ) { return $default_value; } $registered = get_registered_settings(); if ( empty( $registered[ $option ] ) ) { return $default_value; } return $registered[ $option ]['default']; } /** * Returns the values that trigger autoloading from the options table. * * @since 6.6.0 * * @return string[] The values that trigger autoloading. */ function wp_autoload_values_to_autoload() { $autoload_values = array( 'yes', 'on', 'auto-on', 'auto' ); /** * Filters the autoload values that should be considered for autoloading from the options table. * * The filter can only be used to remove autoload values from the default list. * * @since 6.6.0 * * @param string[] $autoload_values Autoload values used to autoload option. * Default list contains 'yes', 'on', 'auto-on', and 'auto'. */ $filtered_values = apply_filters( 'wp_autoload_values_to_autoload', $autoload_values ); return array_intersect( $filtered_values, $autoload_values ); }

A Beginner’s Facts Playing Casino Slots

BDM June 26, 2025 Betting for all Leave a comment 184 Views

How In Order To Play Slots Find Out The Rules Involving Slot Machines

Content

Slot Suggestion 4: Always Perform Within Your Price Range And Be Willing To Lower Your Wager Or Stop Enjoying If You Hit A Limit
Beginners Guide: How To Be Able To Play Slots For Dummies
Slot Tournaments
How To Participate In Slot Machines Online: Step By Stage Instructions For Beginners
Top Payment Approaches Available On Share Casino
Are There Diverse Types Of Slot Machines?
How To Enjoy Slot Machines In A Casino
How To Play Slot Machine Game Machines: A Step By Step Guide
How Developers Found Techniques To Increase Jackpots
Slot Tip 10: Take Advantage Of Bonuses In Addition To Promotions
What Takes Place When You” “Earn On A Slot Machine?
What Is Responsible Video Gaming And What Makes It Important?
Starting To Play Slots
How To Experience Slots: The Pokernews Guide
Find Your Web Slots Casino
Paylines
Understanding Slot Machines
The Future Of Traditional Casino Gambling
How To Try Out Casino Slots For Beginners
Gambling Help
Can I Play Online Slots For Cost-free?
How To Play Free Of Charge Slots To Succeed Real Money
For Progressive Slots
Betting
Top Online Poker Rooms
Basic Sport Concepts
Evoplay Unveils Tree Of Light: Fabled Fruits, An Exilerating Fantasy Slot Adventure
Bonus Features
Tips For Playing Slot Machine Machines
Progressive Jackpot Slots

In most modern devices, the number regarding lines that will pay off for” “a gamer depends on the particular number of credits (money or coin-in) wagered on a new particular spin. Those first machines will be paid out based about the mechanical features of the device. However, modern equipment not merely often employ video reels yet also make full use of random number generators instead of mechanical operation to determine champions.

The strategy of progressive jackpots dates back to be able to 1986 when the particular Megabucks machine seemed to be introduced, allowing earnings to accumulate until the player hit the jackpot. Today, many popular progressive slot machines are connected around multiple casinos, more increasing the jackpot feature potential. Classic slot machines, often referred to be able to as 3-reel slot machine games, provide quick plus satisfying action. These games are great for players who appreciate easy and fast-paced game play. With their standard design and mechanics, classic slots charm to both newbies and seasoned gamers. Typically, these slot machines feature one to three paylines, making them easy in order to understand and enjoy.

Slot Tip 4: Always Enjoy Within Your Budget And Become Willing To Lower Your Guess Or Stop Playing If You Struck A Limit

Bets can be as minimal as 1c each spin, playing with your local on line casino or online is usually easier than at any time to access your bank roll. Modern slot” “equipment games trace to large and unique machines manufactured by an enthusiastic mechanic (and tinkerer) of typically the late 19th millennium, Charles Fey. The machine that Fey created was very simple but complex in concept, and also this machine was the Liberty Bell. Note that these online slot machine game strategies work finest with games that have the lowest volatility since you will need to adjust the dimensions of the gamble as you proceed. Scatter symbols are usually special icons of which can fork out irregardless of their place on the reels, often triggering reward features mostbet.

It’s quick to customize amount of credits you’d like to participate in too.
Because of the long odds, seeking to win a huge jackpot is most likely unrealistic.
You’ll learn what to be able to expect and exactly how to adjust your current playing style to be able to the features of a particular slot device game.
For example, the Blood Suckers slot with the RTP of 98% returns to all players $98 of $100 expended inside; $2 is usually the house edge.
Therefore, carry out not rush to immediately place actual bets, but initial, get accustomed to the position controls.

Now, your house edge will vary with respect to the” “video game that players opt to play, and typically the total bet amount which is placed. Developers are continually striving to innovate and even create new ways for players to be able to win in a great attempt to retain player interest. One of those innovations seemed to be respins or cascading down symbols – which in turn are certain emblems which cause reels to respin to produce bigger wins or multipliers with outrageous symbols potentially. With all the success and recognition, there is usually one thing which includes always been some sort of given for position machines. In essence, they have been income generators regarding casinos for several years in spite of featuring large plus relatively frequent affiliate payouts. Once you’ve set your desired bet, press the “Spin” button or draw the lever (if available) to trigger the spin.

Beginners Guide: How To Play Slots Regarding Dummies

Keeping with the straightforward nature of playing slots at on the web casinos, if gamers have trouble, these types of websites offer consumer service. The special offers that online casinos offer purely relate with in-game aspects such as bonus money in addition to free spins for slots. The appeal of slot machines is the possiblity to hit big which has a jackpot payday. Over the years, developers have continued to find ways to boost the jackpots regarding players without stopping too much of the edge for your casino.

The most realistic strategy when betting on slot machines is bankroll management; its essence is usually rather simple. Each player can devote a certain amount on bets, in addition to spending it within one evening is a bad concept; a wise option is to split your bankroll volume into several parts. For example, following making a deposit, you can divide it into components simultaneously and use only one piece per day for making bets mostbet app.

Slot Tournaments

Today almost all progressives are linked electronically to other machines, with all credit played in the particular linked machines adding to a typical jackpot. Woe will be the person who hits three jackpot symbols about a buy-a-pay together with only one gold coin played — typically the player gets practically nothing back. On some sort of multiplier, payoffs are proportionate for each coin played — apart from, usually, for that leading jackpot.

Their slots selection includes progressive jackpot feature games, as well as a massive selection of all traditional slots you’d count on to find.
This is because slot games can be highly addicting and can prospect a player to chase their losses.
Nowadays, known because a philanthropist, Bill Redd (also referred to as Si) was among the Bally group’s designers in the 1971s.
With all the achievement and popularity, there will be one thing that has always been a new given for slot machine machines.

The wide collection of slot games, like exclusive titles, guarantees a varied plus exciting gaming knowledge. Here are many of the most effective online casinos for slot machine machines and precisely what causes them to be stand out there. A Night Using Cleo transports gamers to the planet of Ancient Egypt, complete with icons such as scarab beetles and the Eye of Horus. This game holds out for its unique bonus models, which add a great extra layer associated with excitement to the gameplay. Players can easily also make use of the chance feature, that allows all of them to attempt in order to double their winnings after any effective spin.

How To Play Slot Machines On-line: Step By Phase Instructions For Beginners

Among other things, site visitors will discover a day-to-day dose of content articles with the newest poker news, reside reporting from tournaments, exclusive videos, podcasts, reviews and bonus deals and so much more. With these kinds of eligibility factors and even any others you might find, your best choice is always in order to game details or even information before a person commit to enjoying. Sean Chaffin can be a longtime freelance article writer, editor, and former high school writing teacher. If you ever feel it’s learning to be a problem, urgently speak to a helpline in your country for immediate” “assistance. From in-depth testimonials and helpful guidelines to the latest reports, we’re here to be able to help you find a very good platforms and create informed decisions every step of the particular way.

They had been featuring three” “re-writing reels operated by way of a handle and a new single slot to be able to place a coin into. This equipment had only one shell out line, with each and every reel featuring several symbols – many you would acknowledge today – spades, hearts, diamonds, a new horseshoe, and the bell. This method requires players to be able to be more involved with every earn, so having some sort of calculator close by is recommended. Instead of changing the particular size of the particular bet based in won or lost rounds, the method has a set bet determined being a percentage of typically the available balance. Using 5% can become convenient, but all of us prefer staying secure and only wagering 3%. Slot machines top the record with regards to the almost all attractive casino game titles for gamblers, the two online and in land-based casinos.

Top Payment Procedures Available On Stake Casino

This feature means that you can spin a slot machine game game without seeking to connect to the particular game, but you is going to take care to be able to ensure you’re not really spending too much per spin. Wilds usually are special symbols that can replace other symbols on paylines to generate benefits. They are typically the most crucial symbols in the particular game and may also sometimes induce bonus features.

Additionally, players could unlock bonus capabilities through scatter signs” “that trigger special features.
If a person start thinking, “Well, they’re only credit, ” or even, “They’re already paid out for, ” it’s harder to persuade yourself to guard your bankroll.
At the core involving every authentic internet gambling platform is gaming software.
Players may also withdraw their funds by hitting “Cash Out and about. ” An individual can will certainly then receive a paper voucher together with the balance amount that can become used in another machine.

The user interface is definitely crafted to mirror the appearance and even ambiance of the conventional gambling establishment, featuring intuitive selections and controls. Volatility measures the frequency as well as the size regarding the wins that will the slots spend. For example, in case you prefer big is the winner less often, then you will want to perform an increased volatility slot; in case you prefer a low volatility slot then an individual will get smaller sized, more frequent is the winner. Commonly, this symbol is very totally different from the other symbols, therefore it is easy to distinguish besides making it simpler to understand the gameplay. Depending how many you obtain, could be dependent about the reward an individual are given; but like always, this may also vary per game.

Are There Different Types Of Slot Machines?

That about wraps upward our How in order to Play Slot Devices for Beginners guidebook. If you’ve appreciated it and are ready to try many free slots with regard to yourself, check out our slot reviews web page now. After a new few spins about those, you’ll grasp all of the particular concepts you’ve figured out about here. Paylines often confuse starter slots players the most, and no Exactly how to Play Slot machine Machines for Beginners guide would be full without explaining all of them further. Each symbol has a different worth and exactly how much you win for making combinations will be identified by the value of the symbols.

Don’t forget to be able to carefully experience almost all of the great print, because a few terms & situations can limit claiming, usage or cashing out of bonuses.
First, you should note that you can always find out exactly what bonus rounds and even special features the game has by viewing the paytable.
The goal with this specific strategy for earning at slots is usually to win back our losses.
Slot machines have are available a long approach since being simple machines and actually their role since store vending equipment.
Once you’ve established your desired gamble, press the “Spin” button or draw the lever (if available) to initiate the spin.

He’s written several books, generally on the topics of card counting and the different blackjack systems they employed over the particular years. He in addition runs a effective YouTube channel wherever he showcases various blackjack scenarios with beginner tips about how to overcome the dealer. Bets can be since little as 1c compared to typically the common minimum levels of $5 in order to $10 that stand and card games require.” “[newline]Please note that Slotsspot. com doesn’t work any gambling companies.

How To Play Slot Machines Inside A Casino

Bonus rounds can befuddle some new participants, so we believed we’d describe all of them here so that this specific How to Play Slot Machines intended for Beginners piece will be complete. When the cheats inserted particular numbers of coins in a certain order, the device would fork out. In jurisdictions with licensed casinos, the law takes a very dim view of cheating the video poker machines. Cheating licensed casinos is a criminal offence and will carry stiff prison terms. A zero-bonus balances the particular possibility of greater wins than you see in pick’em bonuses.

Over in britain, they include a couple of names for all of them, fruit machines in England and puggy in Scotland.
They are created to offer the chance-based, easy-to-play video gaming experience where gamers” “can go back home with potentially big wins using a simple rewrite.
However, you may stick to certain rules when playing particular titles; by using them, you could decrease risks and boost your winning possibilities.
The bonus round is usually activated by way of a minimum of three scatter symbols – but this can easily vary slot in order to slot.
Just such as the relaxed nature of how to play slot machines, players from all over have similar carefree love towards online game.

A gamer has numerous game titles available, something intended for every taste plus interest. However, whilst we can’t inform you how in order to play slot devices and win every time, we can show a couple of slot machine techniques that will assist you win more often. This is knowledge we’ve gained above decades, so bring it in and create sure you realize that before choosing which usually game to enjoy. Some slot machines in the 1960s and ‘70s had been vulnerable to ordinary magnets. Cheaters could make use of the magnets in order to make the fishing reels float freely alternatively of stopping about a spin.

How To Play Position Machines: A Step By Step Guide

Usually, classic, fruits, 3D, and progressive jackpot slot equipment are available with all online internet casinos. Old-fashioned slot equipment have only one horizontal payline, along which in turn three winning emblems (usually fruit icons or 7s) have to line upwards for you to be paid out. The vast bulk of today’s position machines, however, are multi-payline, with a few featuring up to 100 paylines or more.

So, let’s say that we all start with $100, which usually means our 1st bet is 3%.
It works generally the same manner regarding all slot devices, although there may become some variations based on the application developer.
These are the added features that assist to boost your payout in the particular game.
There is enough diversity and choice available amongst the slot machine game games industry.
“Each game comes with a unique combo of features like bonus rounds, thrilling varied animation alternatives, modern machines, multiplier machines, wild icons, and more.

The risk is that a new dry run can lead to a large bet that may be difficult in order to sustain. Some slot machine games feature progressive jackpots, where a small portion of each and every bet contributes to be able to a growing goldmine that can always be won by getting a specific combo or at unique. Find out about slot machines, how that they work and how to play slots for actual money with our own full guide.

How Developers Found Ways To Increase Jackpots

The worst factor you can apply at slot machines is always to chase loss by increasing the bet level. The chances are good that you may lose a lot more cash, and probably crazily run through the bankroll. When selecting an ideal bet level for your slot play, your decision is usually a trade-off among risk and payment.

The machine became known as the Liberty Bell and Fey spawned an evergrowing industry.
There are video games in penny, 2-cent, nickel, 10-cent, 1 fourth, dollar and also $100 denominations, and several machines allow players in order to choose which denomination they want to be able to use.
Nearly everyone is guilty associated with not reading Apple or Google words of service, but you shouldn’t are available to a casino with that same mindset.
The slot machine machine landscape has always been dependent upon the improvements and innovations involving software companies.
These slots are normally great for players who just want to have many fun create typically the most of their particular play.

It’s important to read the cup or help menus and learn precisely what type of device it is. The three major forms of reel-spinning slot machines are the multiplier, the buy-a-pay along with the progressive. Modern movie slots, of program, don’t have real coins but instead use virtual bridal party. To period pay-out odds, simply cash out your own slot credits straight into a real money balance. If you’re gunning for the big bucks, on the other hand, you would end up being wise to stick to high volatility slots.

Slot Hint 10: Take Benefit Of Bonuses And Even Promotions

In typically the rest, the recognition of attempting to be able to win at slot machines is surging to the point slot machine game play is rivaling table play. On those machines, the particular big payoffs have been $50 or $100 — not like typically the big numbers slot machine game players expect today. On systems of which electronically link equipment in several casinos, progressive jackpots reach huge amount of money. It’s quick — just drop coins into typically the slot and push the button or even pull the handle. Newcomers will find the particular personal interaction along with dealers or additional players at the particular tables intimidating — slot players prevent that. And besides, the greatest, most lifestyle-changing jackpots in typically the casino are available upon the slots.

The game software giant incorporated a 4-tier progressive goldmine with levels called mega, major, slight, and mini. In order to be eligible for the tiny jackpot – the lowest of the bunch, you must bet at least 1 cent on all twenty-five paylines (a minimal total of $0. 25). When this comes to video slots, these generally include multi-tier accelerating jackpots. Every video clip slot usually provides between 2 plus 12 progressive goldmine levels, and every level provides a established max bet an individual have to help to make in order to be able to be eligible.

What Occurs When You” “Get On A Slot Machine?

Each slot machine features a pay stand that shows just what symbols have to line up for a pay out of varying sums. These are organized with the greatest payouts, known because the jackpot, on top of the tables and subsequent payouts below those. A desk also includes an amount paid relying on the amount of credits a new player puts in the machine. A random number generator, or perhaps RNG, is a computer technology that is definitely used to determine payouts and jackpots. An RNG makes a sequence associated with simulated random amounts to determine exactly where those reels may land, and therefore which payouts” “are distributed to participants. Modern slot equipment have become high-tech machines with advanced online video, sound, graphics, in addition to gameplay.

So, you should recognize that playing slot machine machines are extremely basic – which is part of the reason players love these games.
Ordinarily, a traditional 3-reel slot will be an ideal opt for for the player who else likes a pared-down game with not any frills and everything perform.
For example, if you owned four matching emblems on reels one, two, four, in addition to five, and some sort of wild landed throughout the middle, you’d have a 5 symbol combination.
Usually, classic, fruit, 3D, and progressive jackpot slot machines are available from all online casinos.
You can typically do this inside the ‘account’ or ‘banking’ section of your own casino.

The scam artists would likely remove the magnetic only when the fishing reels had aligned throughout a winning combo. My top slot machine game machine strategy ideas – you’ll learned about below – consist of 12 do’s and even 6 don’ts that may assist you in answering the top ‘how to succeed at slot machines? Changing the developed payback percentage demands opening the device and replacing a computer chip. Server-based slot machines that will allow casinos in order to change payout proportions remotely, but there are still polices around making these kinds of changes. It’s certainly not unusual to proceed 20 or fifty or more draws without a one payout on a reel-spinning slot, although payouts tend to be more repeated on video video poker machines. Nor would it be unusual for a device to pay again 150 percent or more for many dozen pulls.

What Is Responsible Game Playing And What Makes It Essential?

Given that they are games of chance, playing slots has more to perform with luck as compared to strategy. Even so, there are several strategies you can employ to select some sort of slot machine that may likely pay. As you might have got heard before, a person can’t win large payouts at a intensifying slot if you don’t max the wager. A small section of your bet on a modern slot machine game goes straight into a jackpot or perhaps set of jackpots. The more participants wager on typically the progressive lot the bigger its jackpot gets.

Not all machines are made the similar way and programmed with the same RTP or payment percentage.
To place a bet on the slot machine, simply insert the coins or currency, select your bet size, and take the lever or perhaps press the rotate button.
Alternatively, you can start building up a bankroll by keeping aside small amounts through your savings and after that begin gambling after getting saved enough money for a certain variety of slot machines.
Let’s consider a closer look at the sorts of bonus icons you’re more likely to find in a regular online” “slot.

Other accelerating slots are connected within a casino, although some are interconnected across all internet casinos featuring that certain game. For a new genuine casino experience from the coziness of your abode, live dealer games certainly are a must consider. These games, including live blackjack, different roulette games, and baccarat, feature real human retailers who interact along with players via reside video streams. Players can participate in current gameplay, detailed with interpersonal interaction, creating a great immersive and genuine casino atmosphere. They” “come in various themes and give a stimulating blend of gameplay, visuals, plus the possibility for significant winnings. Demo methods are available regarding players to train and even familiarize themselves along with the game with out risking real cash.

Starting In Order To Play Slots

Yes, due to the fact demo versions permit you to test slots, check their particular characteristics, and do not risk your own funds. While wagering, it is essential to control yourself, while emotions often usually tend to get free from control. It is incredibly common when you strike a large reward and lose manage, forgetting about caution as well as the strategy you adhere to. Aside coming from these run-of-the-mill strategies, participate in slot machine tournaments whenever feasible.

Understanding design and even mechanics in the sport is essential ahead of spinning the fishing reels.
Don’t hesitate in order to ask tough queries; other gamblers are usually willing to out a poor apple.
The scam artists would remove the magnet only if the reels had aligned within a winning mixture.
Video slots are acknowledged for their advanced graphics and several paylines, which will enhance the chances regarding winning.
The paytable also shows the value of every symbol, indicating the amount you win intended for matching different icons on a payline.

When playing video poker machines online, you could decrease or raise your stake by simply clicking on typically the BET/STAKE button. For example, classic on the internet slots based about traditional slot equipment have 3 reels. Three-reel slot games put more importance on their leading jackpots but have got a lesser hit regularity with additional losing spins. If you’re pondering how to win at slots, three-reel position games do offer slot players typically the best possiblity to get big, but additionally the particular best chance in order to lose fast. Every good online gambling establishment will have an array of games to attempt at no cost or true money.

How To Experience Video Poker Machines: The Pokernews Guide

The microprocessors driving today’s machines are set with random-number generation devices that govern winning combinations. Many position players pump money into two or more adjacent devices at a time, although if the casino will be crowded and others are having problems finding places to play, limit yourself to one machine. Select your bets and paylines, and get a theme and bonus feature of which interests you. Online slot software will be governed by the Arbitrary Number Generator, or perhaps RNG. As quickly as you struck the ‘Spin’ key, an algorithm can determine where and if the reels can stop. The process is completely unique, and slot designers have their games examined before they hit the casino industry, along with periodically audited with time.

This network impact results in massive jackpots, some of which can become truly life-changing.
While learning how in order to play casino slot machine games, there are particular factors that you have to always keep in mind when choosing the proper slot machine game game.
Added for the paylines and payout structures, deciphering the bet measurements is likewise crucial, as it can have an effect on both the possible winnings and the particular overall game.
You may well also get a feeling whether it’s achievable to win in slot games and even if so how to win in slots.

Now, a new payout and goldmine is determined as quickly as the player hits the switch to spin the particular reels. If you’re purely after massive jackpots, you ought to consider playing the subsequent games. These top rated progressive jackpot slots have paid out many of the greatest online slot jackpots of all time.

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