Question

我正在尝试使用ajax创建重置密码模块，但php文件中的返回值（console.log()）始终为空。我的php文件中也没有错误，我甚至不回显空字符串。请帮忙，这是我的ajax请求

$.ajax({
    type:'POST',
    url:'verify-change-pass',
    data: {_oldpass : op, _pass1 : p1, _pass2 : p2},
    success:function(data) {
        data = data.trim();

        switch(data){
            case "er_no_acc" : 
                $('#grp_oldpass').addClass('has-error');
                $('#feedback_oldpass').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_oldpass').innerHTML = "*No account found. Please refresh the page to generate new session.";
                //alert('Please enter your username');
                break;
            case "er_oldpass_empty" :
                $('#grp_oldpass').addClass('has-error');
                $('#feedback_oldpass').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_oldpass').innerHTML = "*Please enter old password.";
                // alert('Please enter your password');
                break;
            case "er_oldpass_invalid" : 
                $('#grp_oldpass').addClass('has-error');
                $('#feedback_oldpass').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_oldpass').innerHTML = "*Old password does not match.";                 
                // alert('Please enter your password');
                break;
            case "er_pass1_empty" :
                $('#grp_pass1').addClass('has-error');
                $('#feedback_pass1').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass1').innerHTML = "*Please enter password.";
                // alert('Please enter your password');
                break;
            case "er_pass2_empty" : 
                $('#grp_pass2').addClass('has-error');
                $('#feedback_pass2').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass2').innerHTML = "*Please enter password.";                 
                // alert('Please enter your password');
                break;  
            case "er_pass1_tooshort" :
                $('#grp_pass1').addClass('has-error');
                $('#feedback_pass1').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass1').innerHTML = "*Password must be more than 5 characters.";
                // alert('Password too short.');
                break;
            case "er_pass2_tooshort" :
                $('#grp_pass2').addClass('has-error');
                $('#feedback_pass2').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass2').innerHTML = "*Password must be more than 5 characters.";
                // alert('Password too short.');
                break;
            case "er_pass1_toolong" :
                $('#grp_pass1').addClass('has-error');
                $('#feedback_pass1').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass1').innerHTML = "*Password must be less than 20 characters.";
                // alert('Password too long.');
                break;
            case "er_pass2_toolong" :
                $('#grp_pass2').addClass('has-error');
                $('#feedback_pass2').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass2').innerHTML = "*Password must be less than 20 characters.";
                // alert('Password too long.');
                break;
            case "er_pass_notsame" :
                $('#grp_pass1,#grp_pass2').addClass('has-error');
                $('#feedback_pass1,#feedback_pass2').addClass('glyphicon glyphicon-remove form-control-feedback');
                document.getElementById('msg_pass1').innerHTML = "*Password does not match.";
                document.getElementById('msg_pass2').innerHTML = "*Password does not match.";
                // alert('Password does not match');
                break;                  
            case "y" :
                    ResetMyPassword(p1);    
                break;
            default:
                alert('Error occured : '+data);
        }


        /* Always put console.log for debugging */
        console.log(data);
    }
});

这是我的verify-change-pass.php

session_start();
if(!isset($_SESSION['username'])){
    echo "Error 404 : Page not found.";
    exit();
}
include("connectdb.php");

$par_uname = $_SESSION['username'];
$par_oldpass = isset($_POST['_oldpass']) ? $_POST['_oldpass'] : ''; 
$par_pass1 = isset($_POST['_pass1']) ? $_POST['_pass1'] : '';
$par_pass2 = isset($_POST['_pass2']) ? $_POST['_pass2'] : '';

trim($par_oldpass);
trim($par_pass1);
trim($par_pass2);
htmlspecialchars($par_oldpass);
htmlspecialchars($par_pass1);
htmlspecialchars($par_pass2);

$count=0;
$stmt = $mysqli->prepare("SELECT acc_hashedpass FROM admin_acc WHERE acc_uname=?");
$stmt->bind_param('s',$par_uname);
$stmt->execute(); 
$stmt->store_result();
$count = $stmt->num_rows;
$stmt->bind_result($hashed);
$stmt->fetch();
$stmt->close();

if($count != 1){
    echo "er_no_acc"; //no username found. check the session if fetched properly
    exit();
}

if ($par_oldpass == ""){
    echo "er_oldpass_empty"; //oldpass is empty
    exit();
}

if(!password_verify($par_oldpass,$hashed)){
    echo "er_oldpass_invalid" . password_verify($par_oldpass,$hashed); //invalid old password
    exit();
}

if ($par_pass1 == ""){
    echo "er_pass1_empty"; //password 1 is empty
    exit();
}

if($par_pass2 == ""){
    echo "er_pass2_empty"; //password 2 is empty
    exit();
}

if(mb_strlen($par_pass1) < 6){
    echo "er_pass1_tooshort"; //password is too short. Must be more than 8 characters
    exit();
}
if(mb_strlen($par_pass2) < 6){
    echo "er_pass2_tooshort"; //password is too short. Must be more than 8 characters
    exit();
}

if(mb_strlen($par_pass1) > 20){
    echo "er_pass1_toolong"; //password is too long. Must be less than 20 characters
    exit();
}
if(mb_strlen($par_pass2) > 20){
    echo "er_pass2_toolong"; //password is too long. Must be less than 20 characters
    exit();
}

if ($par_pass1 != $par_pass2){
    echo "er_pass_notsame"; //password doesnt match
    exit();
}

echo "y";

来自verify-change-pass.php的第一个到第6个if的回声正在起作用，之后，返回值始终为空字符串。请帮忙..

顺便说一句，此代码段适用于localhost，但在我上传后，代码无效。

Answer 1

显然我需要+50声望才能发表评论，所以让我通过回答发表评论（笑）

error_reporting(E_ALL);
ini_set('display_errors', 1);

尝试将其添加到代码顶部？

另外，检查是否

include("connectdb.php");

内部有任何错误/可能退出。

您是否尝试过在最顶端回复某些内容？

Answer 2

尝试从ajax调用的php文件代码中删除exit函数并打印您想要的消息，并尝试提醒您在ajax成功获得的响应。 - ＆GT;你可以试试jQuery.trim（数据）;而不是data.trim（）; 希望这样可行。 - ＆GT;如果在php的ajax文件中，则尝试其他个人而不是个人

Ajax-Success返回空字符串

2 个答案: