如何使用ajax调用像codeigniter中的php函数？

Question

This one is very simple. In codeigniter I can have an ajax call like:

    $.ajax({
        type: "POST",
        url: base_url + "index.php/mycontroller/myfunction"
       //so in mycontroller.php  ^ there is function myfunction ()
        data:{id : id},
        success:function(data){

         };
       })

Since class Mycontroller extends CI_Controller.
So how can I do that in raw PHP if I have posted.php, how can I extend this file in order for me to call a function like this:

    <?php
        function test(){
           echo 'Hello World!';
         }

What i'm thinking is like:

    $.ajax({
        type: "POST",
        url: "posted.php/test", //go to posted.php and call test function if possible
        data:{id : id},
        success:function(data){

         };
       })

But this one is not working. So any help?

Answer 1

You could change your ajax POST URL to something like this:

posted.php?call=test

then, in your posted.php, check the GET parameter 'call' and call the right function:

switch($_GET['call']){

  case 'test':
     test();
  break;
 }


 function test() {
     echo "Hello, world!";
 }