//Call stored with in/out parameters;
public function executeParams2($prcName, $arrParams, $outParams = null, $isOutVar = false){
        $res1;$res2;
		/*
		CALL prc_UserAccount_CheckUserExist('kienhuynh0503@yahoo.com.vn',1,@kq,@kq1);
		SELECT @kq;
		*/
        $stmt = $this->db->prepare("call $prcName (?,?,?)");
		if (!$stmt)
		{
			echo $this->db->error;
		}
        $stmt->bind_param('sii', $arrParams[0], $arrParams[1], $res1);
		
		$stmt->execute();
        $result = $stmt->bind_result($res1); 
        $aaa = $stmt->fetch();
        var_dump($res1);
		
	
    }