View file File name : class-wp-feed-cache-transient.php Content :<?php /** * Feed API: WP_Feed_Cache_Transient class * * @package WordPress * @subpackage Feed * @since 4.7.0 */ /** * Core class used to implement feed cache transients. * * @since 2.8.0 * @since 6.7.0 Now properly implements the SimplePie\Cache\Base interface. */ #[AllowDynamicProperties] class WP_Feed_Cache_Transient implements SimplePie\Cache\Base { /** * Holds the transient name. * * @since 2.8.0 * @var string */ public $name; /** * Holds the transient mod name. * * @since 2.8.0 * @var string */ public $mod_name; /** * Holds the cache duration in seconds. * * Defaults to 43200 seconds (12 hours). * * @since 2.8.0 * @var int */ public $lifetime = 43200; /** * Creates a new (transient) cache object. * * @since 2.8.0 * @since 3.2.0 Updated to use a PHP5 constructor. * @since 6.7.0 Parameter names have been updated to be in line with the `SimplePie\Cache\Base` interface. * * @param string $location URL location (scheme is used to determine handler). * @param string $name Unique identifier for cache object. * @param Base::TYPE_FEED|Base::TYPE_IMAGE $type Either `TYPE_FEED` ('spc') for SimplePie data, * or `TYPE_IMAGE` ('spi') for image data. */ public function __construct( $location, $name, $type ) { $this->name = 'feed_' . $name; $this->mod_name = 'feed_mod_' . $name; $lifetime = $this->lifetime; /** * Filters the transient lifetime of the feed cache. * * @since 2.8.0 * * @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours). * @param string $name Unique identifier for the cache object. */ $this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $name ); } /** * Saves data to the transient. * * @since 2.8.0 * * @param array|SimplePie\SimplePie $data Data to save. If passed a SimplePie object, * only cache the `$data` property. * @return true Always true. */ public function save( $data ) { if ( $data instanceof SimplePie\SimplePie ) { $data = $data->data; } set_transient( $this->name, $data, $this->lifetime ); set_transient( $this->mod_name, time(), $this->lifetime ); return true; } /** * Retrieves the data saved in the transient. * * @since 2.8.0 * * @return array Data for `SimplePie::$data`. */ public function load() { return get_transient( $this->name ); } /** * Gets mod transient. * * @since 2.8.0 * * @return int Timestamp. */ public function mtime() { return get_transient( $this->mod_name ); } /** * Sets mod transient. * * @since 2.8.0 * * @return bool False if value was not set and true if value was set. */ public function touch() { return set_transient( $this->mod_name, time(), $this->lifetime ); } /** * Deletes transients. * * @since 2.8.0 * * @return true Always true. */ public function unlink() { delete_transient( $this->name ); delete_transient( $this->mod_name ); return true; } }