php判断前端传的两个字段都和数据库匹配

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代码

<?php
    header("Content-Type:text/html;charset=utf8"); 
	header("Access-Control-Allow-Origin: *"); //解决跨域
	header('Access-Control-Allow-Methods:POST');// 响应类型  
	header('Access-Control-Allow-Headers:*'); // 响应头设置 
    $link=mysql_connect("localhost","root","root"); 
    mysql_select_db("smile", $link); //选择数据库
    mysql_query("SET NAMES utf8");//解决中文乱码问题
	
    $name = $_POST['name'];
    $head = $_POST['avatarUrl'];
    $openid = $_POST['openid'];
    
    if($_POST['aaa']){
	    $accountNumber = $_POST['aaa'];
	    $code = $_POST['bbb'];
    	$check_query = mysql_query("select * from merchant where accountNumber='$accountNumber' and code='$code' limit 1");
    	while($result = mysql_fetch_array($check_query)){
    		echo '1';
    	}else{
    		echo '0';
    	}
    }else{
	$q = "SELECT * FROM user"; //SQL查询语句 SELECT * FROM 表名
	$result = mysql_query("SELECT * FROM user
	WHERE openid='$openid'");
	$num=mysql_num_rows($result);  //获取行数
	if($num>0){
		//修改数据库字段
					mysql_query("UPDATE user SET name = '$name'
					WHERE openid = '$openid'");
					mysql_query("UPDATE user SET head = '$head'
					WHERE openid = '$openid'");
			$result = @mysql_query($strsql);
	}else{
			//插入数据到数据库 
			$strsql = "insert into user (openid,name,head) values('$openid','$name','$head')";
			$result = @mysql_query($strsql);
	}
	echo $name;
    }
    
?>