Aviat\Banker\Teller::has
Determines whether an item is present in the cache.
NOTE: It is recommended that has() is only to be used for cache warming type purposes and not to be used within your live applications operations for get/set, as this method is subject to a race condition where your has() will return true and immediately after, another script can remove it making the state of your app out of date.
Signature
public function has(string
$key )
Parameters
$key— string- The cache item key.
Returns
- bool