WP_Feed_Cache_Transient

17#[AllowDynamicProperties]18class WP_Feed_Cache_Transient implements SimplePie\Cache\Base {19 20	/**21	 * Holds the transient name.22	 *23	 * @since 2.8.024	 * @var string25	 */26	public $name;27 28	/**29	 * Holds the transient mod name.30	 *31	 * @since 2.8.032	 * @var string33	 */34	public $mod_name;35 36	/**37	 * Holds the cache duration in seconds.38	 *39	 * Defaults to 43200 seconds (12 hours).40	 *41	 * @since 2.8.042	 * @var int43	 */44	public $lifetime = 43200;45 46	/**47	 * Creates a new (transient) cache object.48	 *49	 * @since 2.8.050	 * @since 3.2.0 Updated to use a PHP5 constructor.51	 * @since 6.7.0 Parameter names have been updated to be in line with the `SimplePie\Cache\Base` interface.52	 *53	 * @param string                           $location URL location (scheme is used to determine handler).54	 * @param string                           $name     Unique identifier for cache object.55	 * @param Base::TYPE_FEED|Base::TYPE_IMAGE $type     Either `TYPE_FEED` ('spc') for SimplePie data,56	 *                                                   or `TYPE_IMAGE` ('spi') for image data.57	 */58	public function __construct( $location, $name, $type ) {59		$this->name     = 'feed_' . $name;60		$this->mod_name = 'feed_mod_' . $name;61 62		$lifetime = $this->lifetime;63		/**64		 * Filters the transient lifetime of the feed cache.65		 *66		 * @since 2.8.067		 *68		 * @param int    $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).69		 * @param string $name     Unique identifier for the cache object.70		 */71		$this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $name );72	}73 74	/**75	 * Saves data to the transient.76	 *77	 * @since 2.8.078	 *79	 * @param array|SimplePie\SimplePie $data Data to save. If passed a SimplePie object,80	 *                                        only cache the `$data` property.81	 * @return true Always true.82	 */83	public function save( $data ) {84		if ( $data instanceof SimplePie\SimplePie ) {85			$data = $data->data;86		}87 88		set_site_transient( $this->name, $data, $this->lifetime );89		set_site_transient( $this->mod_name, time(), $this->lifetime );90		return true;91	}92 93	/**94	 * Retrieves the data saved in the transient.95	 *96	 * @since 2.8.0