Memcached::getAllKeys
(PECL memcached >= 2.0.0)
Memcached::getAllKeys — Gets the keys stored on all the servers
说明
public array Memcached::getAllKeys
( void
)
Memcached::getAllKeys() queries each memcache server and retrieves an array of all keys stored on them at that point in time. This is not an atomic operation, so it isn't a truly consistent snapshot of the keys at point in time. As memcache doesn't guarantee to return all keys you also cannot assume that all keys have been returned.
参数
此函数没有参数。
返回值
Returns the keys stored on all the servers on success 或者在失败时返回 FALSE.