polylang / include / cache.php

cache.php in Polylang 1.7.3, at include/cache.php

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1	<?php
2	/*
3	* an extremely simple non persistent cache system
4	* not as fast as using directly an array but more readable
5	*
6	* @since 1.7
7	*/
8	class PLL_Cache {
9	protected $blog_id, $cache;
10
11	/*
12	* constructor
13	*
14	* @since 1.7
15	*/
16	public function __construct() {
17	$this->blog_id = get_current_blog_id();
18	add_action('switch_blog', array(&$this, 'switch_blog'));
19	}
20
21	/*
22	* called when switching blog
23	*
24	* @since 1.7
25	*
26	* @param int $new_blog
27	*/
28	public function switch_blog($new_blog) {
29	$this->blog_id = $new_blog;
30	}
31
32	/*
33	* add a value in cache
34	*
35	* @since 1.7
36	*
37	* @param string $key
38	* @param mixed $data
39	*/
40	public function set($key, $data) {
41	$this->cache[$this->blog_id][$key] = $data;
42	}
43
44	/*
45	* get value from cache
46	*
47	* @since 1.7
48	*
49	* @param string $key
50	* @return mixed $data
51	*/
52	public function get($key) {
53	return isset($this->cache[$this->blog_id][$key]) ? $this->cache[$this->blog_id][$key] : false;
54	}
55
56	/*
57	* clean the cache (for this blog only)
58	*
59	* @since 1.7
60	*/
61	public function clean() {
62	unset($this->cache[$this->blog_id]);
63	}
64
65	}
66