doctrine / dbal

    {

        $this->_conn = $conn;

        $this->_stmt = $conn->prepare($prepareString);

        if (false === $this->_stmt) {

            throw new MysqliException($this->_conn->error, $this->_conn->sqlstate, $this->_conn->errno);

        }

        $paramCount = $this->_stmt->param_count;

        if (0 < $paramCount) {

            }

        }

        if ( ! $this->_stmt->execute()) {

            throw new MysqliException($this->_stmt->error, $this->_stmt->sqlstate, $this->_stmt->errno);

        }

        if (null === $this->_columnNames) {

            $meta = $this->_stmt->result_metadata();

            return false;

        }

        if (false === $values) {

            throw new MysqliException($this->_stmt->error, $this->_stmt->sqlstate, $this->_stmt->errno);

        }

        $fetchMode = $fetchMode ?: $this->_defaultFetchMode;