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cb8951b0b3
See #27200. Built from https://develop.svn.wordpress.org/trunk@27262 git-svn-id: http://core.svn.wordpress.org/trunk@27119 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1029 lines
33 KiB
PHP
1029 lines
33 KiB
PHP
<?php
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/**
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* Option API
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*
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* @package WordPress
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* @subpackage Option
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*/
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/**
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* Retrieve option value based on name of option.
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*
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* If the option does not exist or does not have a value, then the return value
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* will be false. This is useful to check whether you need to install an option
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* and is commonly used during installation of plugin options and to test
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* whether upgrading is required.
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*
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* If the option was serialized then it will be unserialized when it is returned.
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*
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* @since 1.5.0
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* @uses apply_filters() Calls 'pre_option_$option' before checking the option.
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* Any value other than false will "short-circuit" the retrieval of the option
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* and return the returned value. You should not try to override special options,
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* but you will not be prevented from doing so.
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* @uses apply_filters() Calls 'option_$option', after checking the option, with
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* the option value.
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*
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* @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
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* @param mixed $default Optional. Default value to return if the option does not exist.
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* @return mixed Value set for the option.
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*/
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function get_option( $option, $default = false ) {
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global $wpdb;
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$option = trim( $option );
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if ( empty( $option ) )
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return false;
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// Allow plugins to short-circuit options.
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$pre = apply_filters( 'pre_option_' . $option, false );
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if ( false !== $pre )
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return $pre;
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if ( defined( 'WP_SETUP_CONFIG' ) )
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return false;
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if ( ! defined( 'WP_INSTALLING' ) ) {
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// prevent non-existent options from triggering multiple queries
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$notoptions = wp_cache_get( 'notoptions', 'options' );
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if ( isset( $notoptions[$option] ) )
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return apply_filters( 'default_option_' . $option, $default );
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$alloptions = wp_load_alloptions();
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if ( isset( $alloptions[$option] ) ) {
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$value = $alloptions[$option];
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} else {
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$value = wp_cache_get( $option, 'options' );
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if ( false === $value ) {
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$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
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// Has to be get_row instead of get_var because of funkiness with 0, false, null values
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if ( is_object( $row ) ) {
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$value = $row->option_value;
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wp_cache_add( $option, $value, 'options' );
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} else { // option does not exist, so we must cache its non-existence
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$notoptions[$option] = true;
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wp_cache_set( 'notoptions', $notoptions, 'options' );
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return apply_filters( 'default_option_' . $option, $default );
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}
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}
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}
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} else {
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$suppress = $wpdb->suppress_errors();
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$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
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$wpdb->suppress_errors( $suppress );
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if ( is_object( $row ) )
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$value = $row->option_value;
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else
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return apply_filters( 'default_option_' . $option, $default );
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}
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// If home is not set use siteurl.
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if ( 'home' == $option && '' == $value )
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return get_option( 'siteurl' );
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if ( in_array( $option, array('siteurl', 'home', 'category_base', 'tag_base') ) )
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$value = untrailingslashit( $value );
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return apply_filters( 'option_' . $option, maybe_unserialize( $value ) );
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}
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/**
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* Protect WordPress special option from being modified.
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*
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* Will die if $option is in protected list. Protected options are 'alloptions'
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* and 'notoptions' options.
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*
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* @since 2.2.0
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*
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* @param string $option Option name.
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*/
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function wp_protect_special_option( $option ) {
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if ( 'alloptions' === $option || 'notoptions' === $option )
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wp_die( sprintf( __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) );
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}
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/**
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* Print option value after sanitizing for forms.
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*
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* @uses attr Sanitizes value.
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* @since 1.5.0
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*
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* @param string $option Option name.
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*/
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function form_option( $option ) {
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echo esc_attr( get_option( $option ) );
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}
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/**
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* Loads and caches all autoloaded options, if available or all options.
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*
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* @since 2.2.0
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*
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* @return array List of all options.
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*/
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function wp_load_alloptions() {
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global $wpdb;
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if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
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$alloptions = wp_cache_get( 'alloptions', 'options' );
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else
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$alloptions = false;
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if ( !$alloptions ) {
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$suppress = $wpdb->suppress_errors();
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if ( !$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) )
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$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" );
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$wpdb->suppress_errors($suppress);
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$alloptions = array();
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foreach ( (array) $alloptions_db as $o ) {
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$alloptions[$o->option_name] = $o->option_value;
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}
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if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
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wp_cache_add( 'alloptions', $alloptions, 'options' );
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}
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return $alloptions;
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}
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/**
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* Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used.
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*
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* @since 3.0.0
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*
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* @param int $site_id Optional site ID for which to query the options. Defaults to the current site.
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*/
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function wp_load_core_site_options( $site_id = null ) {
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global $wpdb;
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if ( !is_multisite() || wp_using_ext_object_cache() || defined( 'WP_INSTALLING' ) )
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return;
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if ( empty($site_id) )
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$site_id = $wpdb->siteid;
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$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' );
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$core_options_in = "'" . implode("', '", $core_options) . "'";
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$options = $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $site_id) );
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foreach ( $options as $option ) {
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$key = $option->meta_key;
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$cache_key = "{$site_id}:$key";
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$option->meta_value = maybe_unserialize( $option->meta_value );
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wp_cache_set( $cache_key, $option->meta_value, 'site-options' );
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}
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}
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/**
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* Update the value of an option that was already added.
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*
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* You do not need to serialize values. If the value needs to be serialized, then
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* it will be serialized before it is inserted into the database. Remember,
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* resources can not be serialized or added as an option.
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*
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* If the option does not exist, then the option will be added with the option
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* value, but you will not be able to set whether it is autoloaded. If you want
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* to set whether an option is autoloaded, then you need to use the add_option().
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*
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* @since 1.0.0
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*
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* @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the
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* option value to be stored.
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* @uses do_action() Calls 'update_option' hook before updating the option.
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* @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success.
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*
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* @param string $option Option name. Expected to not be SQL-escaped.
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* @param mixed $value Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped.
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* @return bool False if value was not updated and true if value was updated.
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*/
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function update_option( $option, $value ) {
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global $wpdb;
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$option = trim($option);
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if ( empty($option) )
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return false;
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wp_protect_special_option( $option );
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if ( is_object( $value ) )
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$value = clone $value;
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$value = sanitize_option( $option, $value );
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$old_value = get_option( $option );
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$value = apply_filters( 'pre_update_option_' . $option, $value, $old_value );
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// If the new and old values are the same, no need to update.
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if ( $value === $old_value )
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return false;
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if ( false === $old_value )
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return add_option( $option, $value );
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$serialized_value = maybe_serialize( $value );
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do_action( 'update_option', $option, $old_value, $value );
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$result = $wpdb->update( $wpdb->options, array( 'option_value' => $serialized_value ), array( 'option_name' => $option ) );
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if ( ! $result )
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return false;
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$notoptions = wp_cache_get( 'notoptions', 'options' );
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if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
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unset( $notoptions[$option] );
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wp_cache_set( 'notoptions', $notoptions, 'options' );
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}
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if ( ! defined( 'WP_INSTALLING' ) ) {
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$alloptions = wp_load_alloptions();
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if ( isset( $alloptions[$option] ) ) {
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$alloptions[ $option ] = $serialized_value;
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wp_cache_set( 'alloptions', $alloptions, 'options' );
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} else {
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wp_cache_set( $option, $serialized_value, 'options' );
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}
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}
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do_action( "update_option_{$option}", $old_value, $value );
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do_action( 'updated_option', $option, $old_value, $value );
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return true;
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}
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/**
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* Add a new option.
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*
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* You do not need to serialize values. If the value needs to be serialized, then
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* it will be serialized before it is inserted into the database. Remember,
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* resources can not be serialized or added as an option.
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*
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* You can create options without values and then update the values later.
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* Existing options will not be updated and checks are performed to ensure that you
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* aren't adding a protected WordPress option. Care should be taken to not name
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* options the same as the ones which are protected.
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*
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* @since 1.0.0
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*
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* @uses do_action() Calls 'add_option' hook before adding the option.
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* @uses do_action() Calls 'add_option_$option' and 'added_option' hooks on success.
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*
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* @param string $option Name of option to add. Expected to not be SQL-escaped.
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* @param mixed $value Optional. Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped.
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* @param mixed $deprecated Optional. Description. Not used anymore.
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* @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up.
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* @return bool False if option was not added and true if option was added.
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*/
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function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {
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global $wpdb;
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if ( !empty( $deprecated ) )
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_deprecated_argument( __FUNCTION__, '2.3' );
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$option = trim($option);
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if ( empty($option) )
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return false;
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wp_protect_special_option( $option );
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if ( is_object($value) )
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$value = clone $value;
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$value = sanitize_option( $option, $value );
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// Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query
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$notoptions = wp_cache_get( 'notoptions', 'options' );
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if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) )
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if ( false !== get_option( $option ) )
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return false;
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$serialized_value = maybe_serialize( $value );
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$autoload = ( 'no' === $autoload ) ? 'no' : 'yes';
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do_action( 'add_option', $option, $value );
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$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 ) );
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if ( ! $result )
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return false;
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if ( ! defined( 'WP_INSTALLING' ) ) {
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if ( 'yes' == $autoload ) {
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$alloptions = wp_load_alloptions();
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$alloptions[ $option ] = $serialized_value;
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wp_cache_set( 'alloptions', $alloptions, 'options' );
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} else {
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wp_cache_set( $option, $serialized_value, 'options' );
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}
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}
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// This option exists now
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$notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh
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if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
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unset( $notoptions[$option] );
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wp_cache_set( 'notoptions', $notoptions, 'options' );
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}
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do_action( "add_option_{$option}", $option, $value );
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do_action( 'added_option', $option, $value );
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return true;
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}
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/**
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* Removes option by name. Prevents removal of protected WordPress options.
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*
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* @since 1.2.0
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*
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* @uses do_action() Calls 'delete_option' hook before option is deleted.
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* @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success.
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*
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* @param string $option Name of option to remove. Expected to not be SQL-escaped.
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* @return bool True, if option is successfully deleted. False on failure.
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*/
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function delete_option( $option ) {
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global $wpdb;
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$option = trim( $option );
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if ( empty( $option ) )
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return false;
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wp_protect_special_option( $option );
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// Get the ID, if no ID then return
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$row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) );
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if ( is_null( $row ) )
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return false;
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do_action( 'delete_option', $option );
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$result = $wpdb->delete( $wpdb->options, array( 'option_name' => $option ) );
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if ( ! defined( 'WP_INSTALLING' ) ) {
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if ( 'yes' == $row->autoload ) {
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$alloptions = wp_load_alloptions();
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if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {
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unset( $alloptions[$option] );
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wp_cache_set( 'alloptions', $alloptions, 'options' );
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}
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} else {
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wp_cache_delete( $option, 'options' );
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}
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}
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if ( $result ) {
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do_action( "delete_option_$option", $option );
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do_action( 'deleted_option', $option );
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return true;
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}
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return false;
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}
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/**
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* Delete a transient.
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*
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* @since 2.8.0
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*
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* @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
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* @uses do_action() Calls 'deleted_transient' hook on success.
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*
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* @param string $transient Transient name. Expected to not be SQL-escaped.
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* @return bool true if successful, false otherwise
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*/
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function delete_transient( $transient ) {
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do_action( 'delete_transient_' . $transient, $transient );
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if ( wp_using_ext_object_cache() ) {
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$result = wp_cache_delete( $transient, 'transient' );
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} else {
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$option_timeout = '_transient_timeout_' . $transient;
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$option = '_transient_' . $transient;
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$result = delete_option( $option );
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if ( $result )
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delete_option( $option_timeout );
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}
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if ( $result )
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do_action( 'deleted_transient', $transient );
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return $result;
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}
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/**
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* Get the value of a transient.
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*
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* If the transient does not exist or does not have a value, then the return value
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* will be false.
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*
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* @uses apply_filters() Calls 'pre_transient_$transient' hook before checking the transient.
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* Any value other than false will "short-circuit" the retrieval of the transient
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* and return the returned value.
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* @uses apply_filters() Calls 'transient_$option' hook, after checking the transient, with
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* the transient value.
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*
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* @since 2.8.0
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*
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* @param string $transient Transient name. Expected to not be SQL-escaped
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* @return mixed Value of transient
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*/
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function get_transient( $transient ) {
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$pre = apply_filters( 'pre_transient_' . $transient, false );
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if ( false !== $pre )
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return $pre;
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if ( wp_using_ext_object_cache() ) {
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$value = wp_cache_get( $transient, 'transient' );
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} else {
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$transient_option = '_transient_' . $transient;
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if ( ! defined( 'WP_INSTALLING' ) ) {
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// If option is not in alloptions, it is not autoloaded and thus has a timeout
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$alloptions = wp_load_alloptions();
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if ( !isset( $alloptions[$transient_option] ) ) {
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$transient_timeout = '_transient_timeout_' . $transient;
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if ( get_option( $transient_timeout ) < time() ) {
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delete_option( $transient_option );
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delete_option( $transient_timeout );
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$value = false;
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}
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}
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}
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if ( ! isset( $value ) )
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$value = get_option( $transient_option );
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}
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return apply_filters( 'transient_' . $transient, $value );
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}
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/**
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* Set/update the value of a transient.
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*
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* You do not need to serialize values. If the value needs to be serialized, then
|
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* it will be serialized before it is set.
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*
|
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* @since 2.8.0
|
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*
|
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* @uses apply_filters() Calls 'pre_set_transient_$transient' hook to allow overwriting the
|
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* transient value to be stored.
|
|
* @uses do_action() Calls 'set_transient_$transient' and 'setted_transient' hooks on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @param mixed $value Transient value. Must be serializable if non-scalar. Expected to not be SQL-escaped.
|
|
* @param int $expiration Time until expiration in seconds, default 0
|
|
* @return bool False if value was not set and true if value was set.
|
|
*/
|
|
function set_transient( $transient, $value, $expiration = 0 ) {
|
|
$value = apply_filters( 'pre_set_transient_' . $transient, $value );
|
|
$expiration = (int) $expiration;
|
|
|
|
if ( wp_using_ext_object_cache() ) {
|
|
$result = wp_cache_set( $transient, $value, 'transient', $expiration );
|
|
} else {
|
|
$transient_timeout = '_transient_timeout_' . $transient;
|
|
$transient = '_transient_' . $transient;
|
|
if ( false === get_option( $transient ) ) {
|
|
$autoload = 'yes';
|
|
if ( $expiration ) {
|
|
$autoload = 'no';
|
|
add_option( $transient_timeout, time() + $expiration, '', 'no' );
|
|
}
|
|
$result = add_option( $transient, $value, '', $autoload );
|
|
} else {
|
|
if ( $expiration )
|
|
update_option( $transient_timeout, time() + $expiration );
|
|
$result = update_option( $transient, $value );
|
|
}
|
|
}
|
|
if ( $result ) {
|
|
do_action( 'set_transient_' . $transient, $value, $expiration );
|
|
do_action( 'setted_transient', $transient, $value, $expiration );
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* 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() )
|
|
return;
|
|
|
|
if ( defined('DOING_AJAX') )
|
|
return;
|
|
|
|
if ( ! $user_id = get_current_user_id() )
|
|
return;
|
|
|
|
if ( is_super_admin() && ! 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 = isset( $_COOKIE['wp-settings-time-' . $user_id]) ? preg_replace( '/[^0-9]/', '', $_COOKIE['wp-settings-time-' . $user_id] ) : 0;
|
|
|
|
// 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.
|
|
setcookie( 'wp-settings-' . $user_id, $settings, time() + YEAR_IN_SECONDS, SITECOOKIEPATH );
|
|
setcookie( 'wp-settings-time-' . $user_id, time(), time() + YEAR_IN_SECONDS, SITECOOKIEPATH );
|
|
$_COOKIE['wp-settings-' . $user_id] = $settings;
|
|
}
|
|
|
|
/**
|
|
* Retrieve user interface setting value based on setting name.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $name The name of the setting.
|
|
* @param string $default Optional default value to return when $name is not set.
|
|
* @return mixed the last saved user setting or the default value/false if it doesn't exist.
|
|
*/
|
|
function get_user_setting( $name, $default = false ) {
|
|
$all_user_settings = get_all_user_settings();
|
|
|
|
return isset( $all_user_settings[$name] ) ? $all_user_settings[$name] : $default;
|
|
}
|
|
|
|
/**
|
|
* Add or update user interface setting.
|
|
*
|
|
* Both $name and $value can contain only ASCII letters, numbers 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 true if set successfully/false if not.
|
|
*/
|
|
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 );
|
|
}
|
|
|
|
/**
|
|
* Delete 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 mixed $names The name or array of names of the setting to be deleted.
|
|
* @return bool true if deleted successfully/false if not.
|
|
*/
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* Retrieve all user interface settings.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @return array the last saved user settings or empty array.
|
|
*/
|
|
function get_all_user_settings() {
|
|
global $_updated_user_settings;
|
|
|
|
if ( ! $user_id = get_current_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 ( $cookie && 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
|
|
*
|
|
* @param array $user_settings
|
|
* @return bool
|
|
*/
|
|
function wp_set_all_user_settings( $user_settings ) {
|
|
global $_updated_user_settings;
|
|
|
|
if ( ! $user_id = get_current_user_id() )
|
|
return false;
|
|
|
|
if ( is_super_admin() && ! 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-' . $user_id, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH);
|
|
}
|
|
|
|
/**
|
|
* Retrieve site option value based on name of option.
|
|
*
|
|
* @see get_option()
|
|
* @since 2.8.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_site_option_$option' before checking the option.
|
|
* Any value other than false will "short-circuit" the retrieval of the option
|
|
* and return the returned value.
|
|
* @uses apply_filters() Calls 'site_option_$option', after checking the option, with
|
|
* the option value.
|
|
*
|
|
* @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 $use_cache Whether to use cache. Multisite only. Default true.
|
|
* @return mixed Value set for the option.
|
|
*/
|
|
function get_site_option( $option, $default = false, $use_cache = true ) {
|
|
global $wpdb;
|
|
|
|
// Allow plugins to short-circuit site options.
|
|
$pre = apply_filters( 'pre_site_option_' . $option, false );
|
|
if ( false !== $pre )
|
|
return $pre;
|
|
|
|
// prevent non-existent options from triggering multiple queries
|
|
$notoptions_key = "{$wpdb->siteid}:notoptions";
|
|
$notoptions = wp_cache_get( $notoptions_key, 'site-options' );
|
|
if ( isset( $notoptions[$option] ) )
|
|
return apply_filters( 'default_site_option_' . $option, $default );
|
|
|
|
if ( ! is_multisite() ) {
|
|
$default = apply_filters( 'default_site_option_' . $option, $default );
|
|
$value = get_option($option, $default);
|
|
} else {
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
if ( $use_cache )
|
|
$value = wp_cache_get($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, $wpdb->siteid ) );
|
|
|
|
// 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 {
|
|
$notoptions[$option] = true;
|
|
wp_cache_set( $notoptions_key, $notoptions, 'site-options' );
|
|
$value = apply_filters( 'default_site_option_' . $option, $default );
|
|
}
|
|
}
|
|
}
|
|
|
|
return apply_filters( 'site_option_' . $option, $value );
|
|
}
|
|
|
|
/**
|
|
* Add a new site option.
|
|
*
|
|
* Existing options will not be updated. Note that prior to 3.3 this wasn't the case.
|
|
*
|
|
* @see add_option()
|
|
* @since 2.8.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_add_site_option_$option' hook to allow overwriting the
|
|
* option value to be stored.
|
|
* @uses do_action() Calls 'add_site_option_$option' and 'add_site_option' hooks on success.
|
|
*
|
|
* @param string $option Name of option to add. Expected to not be SQL-escaped.
|
|
* @param mixed $value Optional. 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_site_option( $option, $value ) {
|
|
global $wpdb;
|
|
|
|
wp_protect_special_option( $option );
|
|
|
|
$value = apply_filters( 'pre_add_site_option_' . $option, $value );
|
|
$notoptions_key = "{$wpdb->siteid}:notoptions";
|
|
|
|
if ( !is_multisite() ) {
|
|
$result = add_option( $option, $value );
|
|
} else {
|
|
$cache_key = "{$wpdb->siteid}:$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_site_option( $option ) )
|
|
return false;
|
|
|
|
$value = sanitize_option( $option, $value );
|
|
|
|
$serialized_value = maybe_serialize( $value );
|
|
$result = $wpdb->insert( $wpdb->sitemeta, array('site_id' => $wpdb->siteid, '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 ( $result ) {
|
|
do_action( "add_site_option_{$option}", $option, $value );
|
|
do_action( "add_site_option", $option, $value );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Removes site option by name.
|
|
*
|
|
* @see delete_option()
|
|
* @since 2.8.0
|
|
*
|
|
* @uses do_action() Calls 'pre_delete_site_option_$option' hook before option is deleted.
|
|
* @uses do_action() Calls 'delete_site_option' and 'delete_site_option_$option'
|
|
* hooks on success.
|
|
*
|
|
* @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 ) {
|
|
global $wpdb;
|
|
|
|
// ms_protect_special_option( $option ); @todo
|
|
|
|
do_action( 'pre_delete_site_option_' . $option );
|
|
|
|
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, $wpdb->siteid ) );
|
|
if ( is_null( $row ) || !$row->meta_id )
|
|
return false;
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
wp_cache_delete( $cache_key, 'site-options' );
|
|
|
|
$result = $wpdb->delete( $wpdb->sitemeta, array( 'meta_key' => $option, 'site_id' => $wpdb->siteid ) );
|
|
}
|
|
|
|
if ( $result ) {
|
|
do_action( "delete_site_option_{$option}", $option );
|
|
do_action( "delete_site_option", $option );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Update the value of a site option that was already added.
|
|
*
|
|
* @see update_option()
|
|
* @since 2.8.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_update_site_option_$option' hook to allow overwriting the
|
|
* option value to be stored.
|
|
* @uses do_action() Calls 'update_site_option_$option' and 'update_site_option' hooks on success.
|
|
*
|
|
* @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_site_option( $option, $value ) {
|
|
global $wpdb;
|
|
|
|
wp_protect_special_option( $option );
|
|
|
|
$old_value = get_site_option( $option );
|
|
$value = apply_filters( 'pre_update_site_option_' . $option, $value, $old_value );
|
|
|
|
if ( $value === $old_value )
|
|
return false;
|
|
|
|
if ( false === $old_value )
|
|
return add_site_option( $option, $value );
|
|
|
|
$notoptions_key = "{$wpdb->siteid}: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 );
|
|
} else {
|
|
$value = sanitize_option( $option, $value );
|
|
|
|
$serialized_value = maybe_serialize( $value );
|
|
$result = $wpdb->update( $wpdb->sitemeta, array( 'meta_value' => $serialized_value ), array( 'site_id' => $wpdb->siteid, 'meta_key' => $option ) );
|
|
|
|
if ( $result ) {
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
wp_cache_set( $cache_key, $value, 'site-options' );
|
|
}
|
|
}
|
|
|
|
if ( $result ) {
|
|
do_action( "update_site_option_{$option}", $option, $value, $old_value );
|
|
do_action( "update_site_option", $option, $value, $old_value );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete a site transient.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @uses do_action() Calls 'delete_site_transient_$transient' hook before transient is deleted.
|
|
* @uses do_action() Calls 'deleted_site_transient' hook on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @return bool True if successful, false otherwise
|
|
*/
|
|
function delete_site_transient( $transient ) {
|
|
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 )
|
|
do_action( 'deleted_site_transient', $transient );
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get the value of a site transient.
|
|
*
|
|
* If the transient does not exist or does not have a value, then the return value
|
|
* will be false.
|
|
*
|
|
* @see get_transient()
|
|
* @since 2.9.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_site_transient_$transient' hook before checking the transient.
|
|
* Any value other than false will "short-circuit" the retrieval of the transient
|
|
* and return the returned value.
|
|
* @uses apply_filters() Calls 'site_transient_$option' hook, after checking the transient, with
|
|
* the transient value.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @return mixed Value of transient
|
|
*/
|
|
function get_site_transient( $transient ) {
|
|
$pre = apply_filters( 'pre_site_transient_' . $transient, false );
|
|
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 );
|
|
}
|
|
|
|
return apply_filters( 'site_transient_' . $transient, $value );
|
|
}
|
|
|
|
/**
|
|
* Set/update the value of a site transient.
|
|
*
|
|
* You do not need to serialize values, if the value needs to be serialize, then
|
|
* it will be serialized before it is set.
|
|
*
|
|
* @see set_transient()
|
|
* @since 2.9.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_set_site_transient_$transient' hook to allow overwriting the
|
|
* transient value to be stored.
|
|
* @uses do_action() Calls 'set_site_transient_$transient' and 'setted_site_transient' hooks on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @param mixed $value Transient value. Expected to not be SQL-escaped.
|
|
* @param int $expiration Time until expiration in seconds, default 0
|
|
* @return bool False if value was not set and true if value was set.
|
|
*/
|
|
function set_site_transient( $transient, $value, $expiration = 0 ) {
|
|
$value = apply_filters( 'pre_set_site_transient_' . $transient, $value );
|
|
$expiration = (int) $expiration;
|
|
|
|
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 ) {
|
|
do_action( 'set_site_transient_' . $transient, $value, $expiration );
|
|
do_action( 'setted_site_transient', $transient, $value, $expiration );
|
|
}
|
|
return $result;
|
|
}
|