er_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. Set all user interface settings. * * @since 2.8.0 * @access private * * @global array $_updated_user_settings * * @param array $user_settings User settings. * @return bool|null False if the current user can't be found, null if the current * user is not a super admin or a member of the site, otherwise true. */ function wp_set_all_user_settings( $user_settings ) { global $_updated_user_settings; if ( ! $user_id = get_current_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; } /** * Delete the user settings of the current user. * * @since 2.7.0 */ function delete_all_user_settings() { if ( ! $user_id = get_current_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 option to retrieve. Expected to not be SQL-escaped. * @param mixed $default Optional value to return if 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 = false, $deprecated = true ) { return get_network_option( null, $option, $default ); } /** * Add 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 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 False if the option was not added. True if the option was added. */ function add_site_option( $option, $value ) { return add_network_option( null, $option, $value ); } /** * Removes a 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 option to remove. Expected to not be SQL-escaped. * @return bool True, if succeed. False, if failure. */ function delete_site_option( $option ) { return delete_network_option( null, $option ); } /** * Update 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 option. Expected to not be SQL-escaped. * @param mixed $value Option value. Expected to not be SQL-escaped. * @return bool False if value was not updated. True if value was updated. */ function update_site_option( $option, $value ) { return update_network_option( null, $option, $value ); } /** * Retrieve a network's option value based on the option name. * * @since 4.4.0 * * @see get_option() * * @global wpdb $wpdb * * @param int $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of option to retrieve. Expected to not be SQL-escaped. * @param mixed $default 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 = 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 ) { $network_id = get_current_network_id(); } /** * Filters an existing network option before it is retrieved. * * The dynamic portion of the hook name, `$option`, refers to the option name. * * Passing a truthy value to the filter will effectively short-circuit retrieval, * returning the passed 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` parameter was added. * * @param mixed $pre_option The value to return instead of the option value. This differs from * `$default`, which is used as the fallback value in the event the * option doesn't exist elsewhere in get_network_option(). Default * is false (to skip past the short-circuit). * @param string $option Option name. * @param int $network_id ID of the network. * @param mixed $default The fallback value to return if the option does not exist. * Default is false. */ $pre = apply_filters( "pre_site_option_{$option}", false, $option, $network_id, $default ); 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 ( isset( $notoptions[ $option ] ) ) { /** * Filters a specific default network option. * * The dynamic portion of the hook name, `$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 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, $option, $network_id ); } if ( ! is_multisite() ) { /** This filter is documented in wp-includes/option.php */ $default = apply_filters( 'default_site_option_' . $option, $default, $option, $network_id ); $value = get_option( $option, $default ); } 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, $option, $network_id ); } } } /** * Filters the value of an existing network option. * * The dynamic portion of the hook name, `$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 ); } /** * Add a new network option. * * Existing options will not be updated. * * @since 4.4.0 * * @see add_option() * * @global wpdb $wpdb * * @param int $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of 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 False if option was not added and true if option was added. */ 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, '', 'no' ); } 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 * * @param int $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of option to remove. Expected to not be SQL-escaped. * @return bool True, if succeed. False, if failure. */ 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 ( $result ) { /** * Fires after a specific network option has been deleted. * * The dynamic portion of the hook name, `$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; } /** * Update the value of a network option that was already added. * * @since 4.4.0 * * @see update_option() * * @global wpdb $wpdb * * @param int $network_id ID of the network. Can be null to default to the current network ID. * @param string $option Name of option. Expected to not be SQL-escaped. * @param mixed $value Option value. Expected to not be SQL-escaped. * @return bool False if value was not updated and true if value was updated. */ 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, $option, false ); /** * Filters a specific network option before its value is updated. * * The dynamic portion of the hook name, `$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 ( $value === $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, 'no' ); } 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; } /** * Delete a site transient. * * @since 2.9.0 * * @param string $transient Transient name. Expected to not be SQL-escaped. * @return bool True if successful, 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() ) { $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; } /** * Get 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( $transient ) { /** * Filters the value of an existing site transient. * * The dynamic portion of the hook name, `$transient`, refers to the transient name. * * Passing a truthy value to the filter will effectively short-circuit retrieval, * returning the passed 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 the returned 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() ) { $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 ) ) { $transient_timeout = '_site_transient_timeout_' . $transient; $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 ); } /** * Set/update the value of a site transient. * * You do not need to serialize values, if the value needs to be serialize, 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 False if value was not set and true if value was set. */ 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() ) { $result = wp_cache_set( $transient, $value, 'site-transient', $expiration ); } else { $transient_timeout = '_site_transient_timeout_' . $transient; $option = '_site_transient_' . $transient; 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 3.0.0 * * @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( 'setted_site_transient', $transient, $value, $expiration ); } return $result; } /** * Register 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 */ function register_initial_settings() { register_setting( 'general', 'blogname', array( 'show_in_rest' => array( 'name' => 'title', ), 'type' => 'string', 'description' => __( 'Site title.' ), ) ); register_setting( 'general', 'blogdescription', array( 'show_in_rest' => array( 'name' => 'description', ), 'type' => 'string', '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', 'description' => __( 'Blog pages show at most.' ), 'default' => 10, ) ); 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', 'description' => __( 'Allow people to post comments on new articles.' ), ) ); } /** * Register a setting and its data. * * @since 2.7.0 * @since 4.7.0 `$args` can be passed to set flags on the setting, similar to `register_meta()`. * * @global array $new_whitelist_options * @global array $wp_registered_settings * * @param string $option_group A settings group name. Should correspond to a whitelisted option key name. * Default whitelisted option key names include "general," "discussion," and "reading," among others. * @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', and 'number'. * @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 $show_in_rest Whether data associated with this setting should be included in the REST API. * @type mixed $default Default value when calling `get_option()`. * } */ function register_setting( $option_group, $option_name, $args = array() ) { global $new_whitelist_options, $wp_registered_settings; $defaults = array( 'type' => 'string', 'group' => $option_group, '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 ); if ( ! is_array( $wp_registered_settings ) ) { $wp_registered_settings = array(); } if ( 'misc' == $option_group ) { _deprecated_argument( __FUNCTION__, '3.0.0', /* translators: %s: misc */ sprintf( __( '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', /* translators: %s: privacy */ sprintf( __( 'The "%s" options group has been removed. Use another settings group.' ), 'privacy' ) ); $option_group = 'reading'; } $new_whitelist_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 ); } $wp_registered_settings[ $option_name ] = $args; } /** * Unregister a setting. * * @since 2.7.0 * @since 4.7.0 `$sanitize_callback` was deprecated. The callback from `register_setting()` is now used instead. * * @global array $new_whitelist_options * * @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 Deprecated. */ function unregister_setting( $option_group, $option_name, $deprecated = '' ) { global $new_whitelist_options, $wp_registered_settings; if ( 'misc' == $option_group ) { _deprecated_argument( __FUNCTION__, '3.0.0', /* translators: %s: misc */ sprintf( __( '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', /* translators: %s: privacy */ sprintf( __( 'The "%s" options group has been removed. Use another settings group.' ), 'privacy' ) ); $option_group = 'reading'; } $pos = array_search( $option_name, (array) $new_whitelist_options[ $option_group ] ); if ( $pos !== false ) { unset( $new_whitelist_options[ $option_group ][ $pos ] ); } if ( '' !== $deprecated ) { _deprecated_argument( __FUNCTION__, '4.7.0', /* translators: 1: $sanitize_callback, 2: register_setting() */ sprintf( __( '%1$s is deprecated. The callback from %2$s is used instead.' ), '$sanitize_callback', 'register_setting()' ) ); 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'] ); } unset( $wp_registered_settings[ $option_name ] ); } } /** * Retrieves an array of registered settings. * * @since 4.7.0 * * @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 $wp_registered_settings; } /** * Filter the default value for the option. * * For settings which register a default setting in `register_setting()`, this * function is added as a filter to `default_option_{$option}`. * * @since 4.7.0 * * @param mixed $default 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, $option, $passed_default ) { if ( $passed_default ) { return $default; } $registered = get_registered_settings(); if ( empty( $registered[ $option ] ) ) { return $default; } return $registered[ $option ]['default']; }
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