如何从成功中获取ajax响应并使用jQuery将其分配给变量？ [英] How to get the ajax response from success and assign it in a variable using jQuery?

问题描述

大家好我从ajax获取响应时遇到问题。如果我在控制台中显示它。我可以看到它。但是如何在变量中分配它？

Hello guys I have a problem in getting the response from my ajax. If I display it in the console. I can view it. But How do I assign it in a variable?

这就是我所拥有的。
在我的PHP代码中，我有这个

Here's what I have. In my PHP code I have this

public function checkPassword($password){

            $username = $this->session->userdata('username');
            $validate = $this->members_model->checkPassword($password,$username);

            echo $validate;

}

在我的jquery中我有这个

In my jquery I have this

$('#existing').on('keyup',function(){

            var id = '<?php echo $this->session->userdata("user_id"); ?>';
            var password_url = '<?php echo site_url("member/checkPassword/' +id+ '"); ?>';

            $.ajax({
                type: 'POST',
                url: password_url,
                data: '',
                dataType: 'json',
                success: function(response){

                var g = response;
                if(g == 1){
                    $('#existing_info').html('Password is VALID'); //Doesn't display the VALID if the response is 1. Why?
                }else{
                    $('#existing_info').html('Password is INVALID!');
                }

                }

            });

        });

推荐答案

$.ajax({
        type: 'POST',
        url: password_url,
        data: '',
        dataType: 'json',
        success: function(response){
           var k=response;

           if(k.indexOf("1") != -1)
             $('#existing_info').html('Password is VALID');
           else
              $('#existing_info').html('Password is INVALID!');
        }
    });

response 是成功函数的响应变量。

response is in response variable of success function.

indexof 返回第一次出现指定值的调用String对象中的索引，从fromIndex开始搜索，
返回-1如果找不到值。

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