php - ajax登录成功数据但不重定向到索引页面

Question

我想使用ajax成功响应验证登录表单是否有效，但如果所有商品都应该重定向到索引页面，但它不起作用，我不明白出了什么问题，请帮忙。提前致谢..

$(document).ready(function(){
       var response;
        $('#submit').click(function(e){
        e.preventDefault();
        $('.alert-box').html('<div id="loading" style="margin: 0 auto;" > 
        </div>');
        var action = 'ajax_validation';
        var username = $('#username').val();
        var password = $('#password').val();
        $.ajax({
            url:"do_login.php",
            method:"POST",
            data:{action:action, username:username, password:password},
            success:function(data){
              response = data;
              if(response === 1){
                window.location.href = "http://stackoverflow.com";
              }else{
                $('.alert-box').addClass("alert alert-warning");
                $('.alert-box').html(response);
              }
                }
            });
       });
    });

上面这些ajax请求 这是操作页面代码 include('includes/db.php');

if(isset($_POST["action"])){

    $check_username = $_POST['username'];
    $check_password = $_POST['password'];

    if(empty($check_username) && empty($check_password)){
        echo "Please fill all field";
    }else{
        $query = "SELECT * FROM user WHERE email = '{$check_username}' AND password = '{$check_password}' ";  
        $select_query=mysqli_query($connection,$query);

        if(!$select_query){
        die("QUERY FAILED".mysqli_error($select_query));
        }

        if(mysqli_num_rows($select_query)==0){
            echo "Username or password are incorrect!";
        }else{
            while ($row=mysqli_fetch_assoc($select_query)) {
                $_SESSION['username'] = $row['email'];
                echo $row['email'];
            }
        }
    }

  }

Answer 1

在你的回复中你正在呼应

 echo $row['email'];

这应该是:

 echo 1;