This operation fails (returns false) if the CAS token didn't match with
what's currently in cache, when a new value has been written to cache
after we've fetched it. If the operation succeeds, true will be returned.
| public cas ( mixed $token, string $key, mixed $value, integer $expire ) : boolean | ||
| $token | mixed | Token received from get() or getMulti() |
| $key | string | |
| $value | mixed | |
| $expire | integer | Time when item falls out of the cache: 0 = permanent (doesn't expires); under 2592000 (30 days) = relative time, in seconds from now; over 2592000 = absolute time, unix timestamp |
| return | boolean | |
/**
* {@inheritdoc}
*/
public function cas($token, $key, $value, $expire = 0)
{
return $this->cache->cas($token, $key, $value, $expire);
}