public function delete($key)
    {
        if ($this->isSafe() && !empty($key)) {
            return $this->client->delete($key);
        }

        return false;
    }
public function delete($key)
    {
        if ($this->isSafe() && !empty($key)) {
            return $this->client->delete($key);
        }

        return false;
    }
public function delete ( $ key ) { if ( $ this -> isSafe ( ) && ! empty ( $ key ) ) { return $ this -> client -> delete ( $ key ) ; } return false ; }
Delete a key from the cache

@param string $key Unique key
@access public
@return void
Delete a key from the cache