Ajax请求有效但不显示吗? [英] Ajax request working but not displaying?

问题描述

我对ajax请求有疑问.我创建了一个测验，它会询问所有问题，当用户完成测验时，它应调用AJAX.PHP文件的请求以调出信息.请在下面查看我的代码，我已经运行了ajax.php文件，它正在收集所有信息.但是在tests.php页面中，完成后什么也没显示.还有ajax $(#quiz_form，#demo1").addClass("hide");似乎没有任何显示，但没有完成下面的下两个功能.

有人可以帮忙吗?

AJAX请求-在tests.php中

我尝试过的事情:

I''m having an issue with an ajax request. I have a created a quiz which goes through questions and when the user finishes it, it should call a request to an AJAX.PHP file to call out information. Please see my code below, i have run the ajax.php file and it is gathering up all the information. But in the tests.php page, when it finishes it shows nothing. also the ajax $("#quiz_form,#demo1").addClass("hide"); seems to work as nothing displays, but doesnt complete the next two functions below.

Can someone help?

AJAX REQUEST - in tests.php

What I have tried:

function submit(){
     $.ajax({
                    type: "POST",
                    url: "ajax.php",
                    data: $(''form'').serialize(),
                    success: function(msg) {
                      $("#quiz_form,#demo1").addClass("hide");
                      $(''#result'').show();
                      $(''#result'').append(msg);
                    }
     });

ajax.php

ajax.php

$response= $db->prepare("SELECT id,question_name,answer FROM questions");
$response->execute();

 $i=1;
 $right_answer=0;
 $wrong_answer=0;
 $unanswered=0;

 while($result=$response->fetch(PDO::FETCH_ASSOC)) {
// while($result=mysql_fetch_array($response)){ 
       if($result[''answer'']==$_POST["$i"]){
           $right_answer++;
       }else if($_POST["$i"]==5){
           $unanswered++;
       }
       else{
           $wrong_answer++;
       }
       $i++;
 }
 echo "<div id=''answer''>";
 echo " Right Answer  : ". $right_answer."<br>";

 echo " Wrong Answer  : ". $wrong_answer."<br>";

 echo " Unanswered Question  : ". $unanswered."<br>";
 echo "</div>";

推荐答案

(#quiz_form，#demo1").addClass("hide");似乎没有任何显示，但没有完成下面的下两个功能.

有人可以帮忙吗?

AJAX请求-在tests.php中

我尝试过的事情:

("#quiz_form,#demo1").addClass("hide"); seems to work as nothing displays, but doesnt complete the next two functions below.

Can someone help?

AJAX REQUEST - in tests.php

What I have tried:

function submit(){

.ajax({ 输入:"POST"， 网址:"ajax.php"， 数据:

.ajax({ type: "POST", url: "ajax.php", data:

(``form'').serialize()， 成功:function(msg){

(''form'').serialize(), success: function(msg) {

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