depicter / vendor / averta / wordpress / src / Utility / Cache.php

Cache.php in Depicter — Popup & Slider Builder trunk, at vendor/averta/wordpress/src/Utility/Cache.php

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1	<?php
2	namespace Averta\WordPress\Utility;
3
4
5	class Cache{
6
7	public static function prevent(){
8	if ( ! defined( 'DONOTCACHEPAGE' ) ) {
9	define( 'DONOTCACHEPAGE', true );
10	}
11
12	if ( ! defined( 'DONOTCACHEDB' ) ) {
13	define( 'DONOTCACHEDB', true );
14	}
15
16	if ( ! defined( 'DONOTMINIFY' ) ) {
17	define( 'DONOTMINIFY', true );
18	}
19
20	if ( ! defined( 'DONOTCDN' ) ) {
21	define( 'DONOTCDN', true );
22	}
23
24	if ( ! defined( 'DONOTCACHCEOBJECT' ) ) {
25	define( 'DONOTCACHCEOBJECT', true );
26	}
27
28	// prevent caching.
29	nocache_headers();
30	}
31
32	/**
33	* Get the value of a transient.
34	*
35	* If the transient does not exist, does not have a value, or has expired,
36	* then the return value will be false.
37	*
38	* @param string $key Cache key. Expected to not be SQL-escaped.
39	*
40	* @return mixed Value of transient.
41	*/
42	public static function getDatabaseCache( $key ) {
43	global $_wp_using_ext_object_cache;
44
45	$current_using_cache = $_wp_using_ext_object_cache;
46	$_wp_using_ext_object_cache = false;
47
48	$result = get_transient( $key );
49
50	$_wp_using_ext_object_cache = $current_using_cache;
51
52	return $result;
53	}
54
55	/**
56	* Set/update the value of a transient.
57	*
58	* You do not need to serialize values. If the value needs to be serialized, then
59	* it will be serialized before it is set.
60	*
61	*
62	* @param string $key Cache key. Expected to not be SQL-escaped. Must be
63	* 172 characters or fewer in length.
64	* @param mixed $value Transient value. Must be serializable if non-scalar.
65	* Expected to not be SQL-escaped.
66	* @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
67	*
68	* @return bool False if value was not set and true if value was set.
69	*/
70	public static function setDatabaseCache( $key, $value, $expiration = 0 ) {
71	global $_wp_using_ext_object_cache;
72
73	$current_using_cache = $_wp_using_ext_object_cache;
74	$_wp_using_ext_object_cache = false;
75
76	$result = set_transient( $key, $value, $expiration );
77
78	$_wp_using_ext_object_cache = $current_using_cache;
79
80	return $result;
81	}
82
83	/**
84	* Delete a transient.
85	*
86	* @param string $key Cache key. Expected to not be SQL-escaped.
87	*
88	* @return bool true if successful, false otherwise
89	*/
90	public static function deleteDatabaseCache( $key ) {
91	global $_wp_using_ext_object_cache;
92
93	$current_using_cache = $_wp_using_ext_object_cache;
94	$_wp_using_ext_object_cache = false;
95
96	$result = delete_transient( $key );
97
98	$_wp_using_ext_object_cache = $current_using_cache;
99
100	return $result;
101	}
102
103	}
104
105