jsonp 简易登录

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width,user-scalable=no,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<center>
    <table>
        <tr>
            <td>帐号</td>
            <td><input type="text" name="user" id="user"></td>
        </tr>
        <tr>
            <td>密码</td>
            <td><input type="text" name="pwd" id="pwd"></td>
        </tr>
        <tr>
            <td><input type="submit" value="注册"></td>
        </tr>
    </table>
</center>
</body>
</html>
<script src="./jquery-3.3.1.min.js"></script>
<script>
    $(document).on(‘click‘,‘:submit‘,function(){
        var user=$("#user").val();
        var pwd=$("#pwd").val();
        if (user==‘‘ || user==null){
            alert(‘帐号为空‘);
            return false;
        }
        if (pwd==‘‘ || pwd==null){
            alert(‘密码为空‘);
            return false;
        }
        $.ajax({
            method:‘post‘,url:‘regist.php‘,jsonpCallback:‘liyue‘,dataType:‘jsonp‘,data:{
                user:user,pwd:pwd
                },success:function(){
                console.log(‘执行中‘);
               // alert(‘注册成功‘);
            }
        })
    })
    function liyue(data){
        alert(data.code);
    }
</script>

<?php
$user=$_POST[‘user‘];
$pwd=$_POST[‘pwd‘];
$Callback=$_GET[‘callback‘];
$pdo= new PDO("mysql:host=127.0.0.1;dbname=1703a",‘root‘,‘root‘);
$sql="insert into users values(null,?,?)";
$query=$pdo->prepare($sql);
$res=$query->execute([$user,$pwd]);
if ($res){
    $str=json_encode([‘code‘=>‘注册成功‘,‘msg‘=>‘100‘,‘data‘=>null]);
}else{
    $str=json_encode([‘code‘=>‘注册失败‘,‘msg‘=>‘200‘,‘data‘=>null]);
}
echo $Callback.‘(‘.$str.‘)‘;

?>

jsonp 简易登录

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