(PECL memcache >= 0.2.0)
Memcache::delete — Delete item from the server
Memcache::delete() deletes item with the key . If parameter timeout is specified, the item will expire after timeout seconds. Also you can use memcache_delete() function.
The key associated with the item to delete.
Execution time of the item. If it's equal to zero, the item will be deleted right away whereas if you set it to 30, the item will be deleted in 30 seconds.
如果成功则返回 TRUE，失败则返回 FALSE。
Example #1 Memcache::delete() example
<?php
/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
/* after 10 seconds item will be deleted by the server */
memcache_delete($memcache_obj, 'key_to_delete', 10);
/* OO API */
$memcache_obj = new Memcache;
$memcache_obj->connect('memcache_host', 11211);
$memcache_obj->delete('key_to_delete', 10);
?>