Zend_Db_Statement_Mysqli::_prepare PHP Method

    public function _prepare($sql)
    {
        $mysqli = $this->_adapter->getConnection();
        $this->_stmt = $mysqli->prepare($sql);
        if ($this->_stmt === false || $mysqli->errno) {
            /**
             * @see Zend_Db_Statement_Mysqli_Exception
             */
            require_once 'Zend/Db/Statement/Mysqli/Exception.php';
            throw new Zend_Db_Statement_Mysqli_Exception("Mysqli prepare error: " . $mysqli->error, $mysqli->errno);
        }
    }