WinCache.php 3.02 KB
Newer Older
Qiang Xue committed
1 2 3
<?php
/**
 * @link http://www.yiiframework.com/
Qiang Xue committed
4
 * @copyright Copyright (c) 2008 Yii Software LLC
Qiang Xue committed
5 6 7
 * @license http://www.yiiframework.com/license/
 */

Qiang Xue committed
8 9
namespace yii\caching;

Qiang Xue committed
10
/**
11
 * WinCache provides XCache caching in terms of an application component.
Qiang Xue committed
12
 *
13 14
 * To use this application component, the [WinCache PHP extension](http://www.iis.net/expand/wincacheforphp)
 * must be loaded. Also note that "wincache.ucenabled" should be set to "On" in your php.ini file.
Qiang Xue committed
15
 *
16
 * See {@link CCache} manual for common cache operations that are supported by WinCache.
Qiang Xue committed
17
 *
Qiang Xue committed
18 19
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
Qiang Xue committed
20
 */
21 22
class WinCache extends Cache
{
Qiang Xue committed
23 24 25 26
	/**
	 * Retrieves a value from cache with a specified key.
	 * This is the implementation of the method declared in the parent class.
	 * @param string $key a unique key identifying the cached value
27
	 * @return string|boolean the value stored in cache, false if the value is not in the cache or expired.
Qiang Xue committed
28 29 30 31 32 33 34 35 36
	 */
	protected function getValue($key)
	{
		return wincache_ucache_get($key);
	}

	/**
	 * Retrieves multiple values from cache with the specified keys.
	 * @param array $keys a list of keys identifying the cached values
37
	 * @return array a list of cached values indexed by the keys
Qiang Xue committed
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
	 */
	protected function getValues($keys)
	{
		return wincache_ucache_get($keys);
	}

	/**
	 * Stores a value identified by a key in cache.
	 * This is the implementation of the method declared in the parent class.
	 *
	 * @param string $key the key identifying the value to be cached
	 * @param string $value the value to be cached
	 * @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire.
	 * @return boolean true if the value is successfully stored into cache, false otherwise
	 */
53
	protected function setValue($key, $value, $expire)
Qiang Xue committed
54
	{
55
		return wincache_ucache_set($key, $value, $expire);
Qiang Xue committed
56 57 58 59 60 61 62 63 64 65 66
	}

	/**
	 * Stores a value identified by a key into cache if the cache does not contain this key.
	 * This is the implementation of the method declared in the parent class.
	 *
	 * @param string $key the key identifying the value to be cached
	 * @param string $value the value to be cached
	 * @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire.
	 * @return boolean true if the value is successfully stored into cache, false otherwise
	 */
67
	protected function addValue($key, $value, $expire)
Qiang Xue committed
68
	{
69
		return wincache_ucache_add($key, $value, $expire);
Qiang Xue committed
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
	}

	/**
	 * Deletes a value with the specified key from cache
	 * This is the implementation of the method declared in the parent class.
	 * @param string $key the key of the value to be deleted
	 * @return boolean if no error happens during deletion
	 */
	protected function deleteValue($key)
	{
		return wincache_ucache_delete($key);
	}

	/**
	 * Deletes all values from cache.
	 * This is the implementation of the method declared in the parent class.
	 * @return boolean whether the flush operation was successful.
	 */
	protected function flushValues()
	{
		return wincache_ucache_clear();
	}
Zander Baldwin committed
92
}