public function has_any(array $keys) {
        foreach ($keys as $key) {
            if ($this->has($key)) {
                return true;
            }
        }
        return false;
    }
public function has_any(array $keys) {
        foreach ($keys as $key) {
            if ($this->has($key)) {
                return true;
            }
        }
        return false;
    }
public function has_any ( array $ keys ) { foreach ( $ keys as $ key ) { if ( $ this -> has ( $ key ) ) { return true ; } } return false ; }
Determines if the store has any of the keys in a list.

@see cache_is_key_aware
@param array $keys The keys to check for.
@return bool True if any of the keys are found, false none of the keys are found.
Determines if the store has any of the keys in a list .