php - 将 ajax 数据发布到 PHP 并返回数据

Question

如何将一些 ajax 数据发送到 Controller 函数并将其取回？因为我想向函数发布一个整数，并获得另一个整数(发布 ID 的项目的总票数)，成功后我想回显该票数。我不知道如何将“id”发布到 Controller 功能。请看我的代码:

//post this integet
the_id = $(this).attr('id'); 

        $.ajax({
            type: "POST",
            data: the_id,
            url: "http://localhost/test/index.php/data/count_votes",
            success: function(){
                //the controller function count_votes returns an integer.
                //echo that with the fade in here.

                }
            });

Answer 1

 $.ajax({
            type: "POST",
            data: {data:the_id},
            url: "http://localhost/test/index.php/data/count_votes",
            success: function(data){
               //data will contain the vote count echoed by the controller i.e.  
                 "yourVoteCount"
              //then append the result where ever you want like
              $("span#votes_number").html(data); //data will be containing the vote count which you have echoed from the controller

                }
            });

在 Controller 中

$data = $_POST['data'];  //$data will contain the_id
//do some processing
echo "yourVoteCount";

澄清

我觉得你很困惑

{data:the_id}

与

success:function(data){

两个数据是不同的，为了您自己的清晰起见，您可以将其修改为

success:function(vote_count){
$(span#someId).html(vote_count);