- if ( '"' !== $data[$length-2] )
- return false;
- case 'a' :
- case 'O' :
- return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data );
- case 'b' :
- case 'i' :
- case 'd' :
- return (bool) preg_match( "/^{$token}:[0-9.E-]+;\$/", $data );
- }
- return false;
-}
-
-/**
- * Check whether serialized data is of string type.
- *
- * @since 2.0.5
- *
- * @param mixed $data Serialized data
- * @return bool False if not a serialized string, true if it is.
- */
-function is_serialized_string( $data ) {
- // if it isn't a string, it isn't a serialized string
- if ( !is_string( $data ) )
- return false;
- $data = trim( $data );
- if ( preg_match( '/^s:[0-9]+:.*;$/s', $data ) ) // this should fetch all serialized strings
- return true;
- return false;
-}
-
-/**
- * Retrieve option value based on name of option.
- *
- * If the option does not exist or does not have a value, then the return value
- * will be false. This is useful to check whether you need to install an option
- * and is commonly used during installation of plugin options and to test
- * whether upgrading is required.
- *
- * If the option was serialized then it will be unserialized when it is returned.
- *
- * @since 1.5.0
- * @package WordPress
- * @subpackage Option
- * @uses apply_filters() Calls 'pre_option_$option' before checking the option.
- * Any value other than false will "short-circuit" the retrieval of the option
- * and return the returned value. You should not try to override special options,
- * but you will not be prevented from doing so.
- * @uses apply_filters() Calls 'option_$option', after checking the option, with
- * the option value.
- *
- * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
- * @return mixed Value set for the option.
- */
-function get_option( $option, $default = false ) {
- global $wpdb;
-
- // Allow plugins to short-circuit options.
- $pre = apply_filters( 'pre_option_' . $option, false );
- if ( false !== $pre )
- return $pre;
-
- $option = trim($option);
- if ( empty($option) )
- return false;
-
- if ( defined( 'WP_SETUP_CONFIG' ) )
- return false;
-
- if ( ! defined( 'WP_INSTALLING' ) ) {
- // prevent non-existent options from triggering multiple queries
- $notoptions = wp_cache_get( 'notoptions', 'options' );
- if ( isset( $notoptions[$option] ) )
- return $default;
-
- $alloptions = wp_load_alloptions();
-
- if ( isset( $alloptions[$option] ) ) {
- $value = $alloptions[$option];
- } else {
- $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' );
- return $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
- return $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') ) )
- $value = untrailingslashit( $value );
-
- return apply_filters( 'option_' . $option, maybe_unserialize( $value ) );
-}
-
-/**
- * Protect 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
- * @package WordPress
- * @subpackage Option
- *
- * @param string $option Option name.
- */
-function wp_protect_special_option( $option ) {
- $protected = array( 'alloptions', 'notoptions' );
- if ( in_array( $option, $protected ) )
- wp_die( sprintf( __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) );
-}
-
-/**
- * Print option value after sanitizing for forms.
- *
- * @uses attr Sanitizes value.
- * @since 1.5.0
- * @package WordPress
- * @subpackage Option
- *
- * @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
- * @package WordPress
- * @subpackage Option
- *
- * @return array List of all options.
- */
-function wp_load_alloptions() {
- global $wpdb;
-
- if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
- $alloptions = wp_cache_get( 'alloptions', 'options' );
- else
- $alloptions = false;
-
- if ( !$alloptions ) {
- $suppress = $wpdb->suppress_errors();
- if ( !$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) )
- $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 ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
- wp_cache_add( 'alloptions', $alloptions, 'options' );
- }
-
- return $alloptions;
-}
-
-/**
- * Loads and caches certain often requested site options if is_multisite() and a peristent cache is not being used.
- *
- * @since 3.0.0
- * @package WordPress
- * @subpackage Option
- *
- * @param int $site_id Optional site ID for which to query the options. Defaults to the current site.
- */
-function wp_load_core_site_options( $site_id = null ) {
- global $wpdb, $_wp_using_ext_object_cache;
-
- if ( !is_multisite() || $_wp_using_ext_object_cache || defined( 'WP_INSTALLING' ) )
- return;
-
- if ( empty($site_id) )
- $site_id = $wpdb->siteid;
-
- $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' );
-
- $core_options_in = "'" . implode("', '", $core_options) . "'";
- $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) );
-
- foreach ( $options as $option ) {
- $key = $option->meta_key;
- $cache_key = "{$site_id}:$key";
- $option->meta_value = maybe_unserialize( $option->meta_value );
-
- wp_cache_set( $cache_key, $option->meta_value, 'site-options' );
- }
-}
-
-/**
- * Update the value of an option that was already added.
- *
- * You do not need to serialize values. If the value needs to be serialized, then
- * it will be serialized before it is inserted into the database. Remember,
- * resources can not be serialized or added as an option.
- *
- * If the option does not exist, then the option will be added with the option
- * value, but you will not be able to set whether it is autoloaded. If you want
- * to set whether an option is autoloaded, then you need to use the add_option().
- *
- * @since 1.0.0
- * @package WordPress
- * @subpackage Option
- *
- * @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the
- * option value to be stored.
- * @uses do_action() Calls 'update_option' hook before updating the option.
- * @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success.
- *
- * @param string $option Option name. Expected to not be SQL-escaped.
- * @param mixed $newvalue Option value. Expected to not be SQL-escaped.
- * @return bool False if value was not updated and true if value was updated.
- */
-function update_option( $option, $newvalue ) {
- global $wpdb;
-
- $option = trim($option);
- if ( empty($option) )
- return false;
-
- wp_protect_special_option( $option );
-
- if ( is_object($newvalue) )
- $newvalue = wp_clone($newvalue);
-
- $newvalue = sanitize_option( $option, $newvalue );
- $oldvalue = get_option( $option );
- $newvalue = apply_filters( 'pre_update_option_' . $option, $newvalue, $oldvalue );
-
- // If the new and old values are the same, no need to update.
- if ( $newvalue === $oldvalue )
- return false;
-
- if ( false === $oldvalue )
- return add_option( $option, $newvalue );
-
- $notoptions = wp_cache_get( 'notoptions', 'options' );
- if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
- unset( $notoptions[$option] );
- wp_cache_set( 'notoptions', $notoptions, 'options' );
- }
-
- $_newvalue = $newvalue;
- $newvalue = maybe_serialize( $newvalue );
-
- do_action( 'update_option', $option, $oldvalue, $_newvalue );
- if ( ! defined( 'WP_INSTALLING' ) ) {
- $alloptions = wp_load_alloptions();
- if ( isset( $alloptions[$option] ) ) {
- $alloptions[$option] = $_newvalue;
- wp_cache_set( 'alloptions', $alloptions, 'options' );
- } else {
- wp_cache_set( $option, $_newvalue, 'options' );
- }
- }
-
- $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) );
-
- if ( $result ) {
- do_action( "update_option_{$option}", $oldvalue, $_newvalue );
- do_action( 'updated_option', $option, $oldvalue, $_newvalue );
- return true;
- }
- return false;
-}
-
-/**
- * Add a new option.
- *
- * You do not need to serialize values. If the value needs to be serialized, then
- * it will be serialized before it is inserted into the database. Remember,
- * resources can not be serialized or added as an option.
- *
- * You can create options without values and then add values later. Does not
- * check whether the option has already been added, but does check that you
- * aren't adding a protected WordPress option. Care should be taken to not name
- * options the same as the ones which are protected and to not add options
- * that were already added.
- *
- * @package WordPress
- * @subpackage Option
- * @since 1.0.0
- *
- * @uses do_action() Calls 'add_option' hook before adding the option.
- * @uses do_action() Calls 'add_option_$option' and 'added_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.
- * @param mixed $deprecated Optional. Description. Not used anymore.
- * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up.
- * @return null returns when finished.
- */
-function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {
- global $wpdb;
-
- if ( !empty( $deprecated ) )
- _deprecated_argument( __FUNCTION__, '2.3' );
-
- $option = trim($option);
- if ( empty($option) )
- return false;
-
- wp_protect_special_option( $option );
-
- if ( is_object($value) )
- $value = wp_clone($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] ) )
- if ( false !== get_option( $option ) )
- return;
-
- $_value = $value;
- $value = maybe_serialize( $value );
- $autoload = ( 'no' === $autoload ) ? 'no' : 'yes';
- do_action( 'add_option', $option, $_value );
- if ( ! defined( 'WP_INSTALLING' ) ) {
- if ( 'yes' == $autoload ) {
- $alloptions = wp_load_alloptions();
- $alloptions[$option] = $value;
- wp_cache_set( 'alloptions', $alloptions, 'options' );
- } else {
- wp_cache_set( $option, $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' );
- }
-
- $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, $value, $autoload ) );
-
- if ( $result ) {
- do_action( "add_option_{$option}", $option, $_value );
- do_action( 'added_option', $option, $_value );
- return true;
- }
- return false;
-}
-
-/**
- * Removes option by name. Prevents removal of protected WordPress options.
- *
- * @package WordPress
- * @subpackage Option
- * @since 1.2.0
- *
- * @uses do_action() Calls 'delete_option' hook before option is deleted.
- * @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success.
- *
- * @param string $option Name of option to remove. Expected to not be SQL-escaped.
- * @return bool True, if option is successfully deleted. False on failure.
- */
-function delete_option( $option ) {
- global $wpdb;
-
- 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;
- do_action( 'delete_option', $option );
- $result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) );
- if ( ! defined( 'WP_INSTALLING' ) ) {
- if ( 'yes' == $row->autoload ) {
- $alloptions = wp_load_alloptions();
- if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {
- unset( $alloptions[$option] );
- wp_cache_set( 'alloptions', $alloptions, 'options' );
- }
- } else {
- wp_cache_delete( $option, 'options' );
- }
- }
- if ( $result ) {
- do_action( "delete_option_$option", $option );
- do_action( 'deleted_option', $option );
- return true;
- }
- return false;
-}
-
-/**
- * Delete a transient
- *
- * @since 2.8.0
- * @package WordPress
- * @subpackage Transient
- *
- * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
- * @uses do_action() Calls 'deleted_transient' hook on success.
- *
- * @param string $transient Transient name. Expected to not be SQL-escaped.
- * @return bool true if successful, false otherwise
- */
-function delete_transient( $transient ) {
- global $_wp_using_ext_object_cache;
-
- do_action( 'delete_transient_' . $transient, $transient );
-
- if ( $_wp_using_ext_object_cache ) {
- $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 )
- do_action( 'deleted_transient', $transient );
- return $result;
-}
-
-/**
- * Get the value of a transient
- *
- * If the transient does not exist or does not have a value, then the return value
- * will be false.
- *
- * @uses apply_filters() Calls 'pre_transient_$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 'transient_$option' hook, after checking the transient, with
- * the transient value.
- *
- * @since 2.8.0
- * @package WordPress
- * @subpackage Transient
- *
- * @param string $transient Transient name. Expected to not be SQL-escaped
- * @return mixed Value of transient
- */
-function get_transient( $transient ) {
- global $_wp_using_ext_object_cache;
-
- $pre = apply_filters( 'pre_transient_' . $transient, false );
- if ( false !== $pre )
- return $pre;
-
- if ( $_wp_using_ext_object_cache ) {
- $value = wp_cache_get( $transient, 'transient' );
- } else {
- $transient_option = '_transient_' . $transient;
- if ( ! defined( '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;
- if ( get_option( $transient_timeout ) < time() ) {
- delete_option( $transient_option );
- delete_option( $transient_timeout );
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff