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Edit File: class-wp-feed-cache.php

<?php /** * Feed API: WP_Feed_Cache class * * @package WordPress * @subpackage Feed * @since 4.7.0 * @deprecated 5.6.0 */ _deprecated_file( basename( __FILE__ ), '5.6.0', '', __( 'This file is only loaded for backward compatibility with SimplePie 1.2.x. Please consider switching to a recent SimplePie version.' ) ); /** * Core class used to implement a feed cache. * * @since 2.8.0 */ #[AllowDynamicProperties] class WP_Feed_Cache extends SimplePie\Cache { /** * Creates a new SimplePie\Cache object. * * @since 2.8.0 * * @param string $location URL location (scheme is used to determine handler). * @param string $filename Unique identifier for cache object. * @param string $extension 'spi' or 'spc'. * @return WP_Feed_Cache_Transient Feed cache handler object that uses transients. */ public function create( $location, $filename, $extension ) { return new WP_Feed_Cache_Transient( $location, $filename, $extension ); } }