wordpress/php-fpm/wordpress_files/plugins/polylang/include/cache.php

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2020-05-22 03:40:23 +02:00
<?php
/**
* An extremely simple non persistent cache system
* not as fast as using directly an array but more readable
*
* @since 1.7
*/
class PLL_Cache {
protected $blog_id, $cache;
/**
* Constructor
*
* @since 1.7
*/
public function __construct() {
$this->blog_id = get_current_blog_id();
add_action( 'switch_blog', array( $this, 'switch_blog' ) );
}
/**
* Called when switching blog
*
* @since 1.7
*
* @param int $new_blog
*/
public function switch_blog( $new_blog ) {
$this->blog_id = $new_blog;
}
/**
* Add a value in cache
*
* @since 1.7
*
* @param string $key
* @param mixed $data
*/
public function set( $key, $data ) {
$this->cache[ $this->blog_id ][ $key ] = $data;
}
/**
* Get value from cache
*
* @since 1.7
*
* @param string $key
* @return mixed $data
*/
public function get( $key ) {
return isset( $this->cache[ $this->blog_id ][ $key ] ) ? $this->cache[ $this->blog_id ][ $key ] : false;
}
/**
* Clean the cache (for this blog only)
*
* @since 1.7
*
* @param string $key
*/
public function clean( $key = '' ) {
if ( empty( $key ) ) {
unset( $this->cache[ $this->blog_id ] );
}
else {
unset( $this->cache[ $this->blog_id ][ $key ] );
}
}
}