Using jquery to reference php class function

I'm very new to jquery and am playing around with it to try to better understand it. I ran across an example on the web that showed how to display something on a web page by calling a php file. This is that code:

<script type="text/javascript">             
  $(document).ready(function(){   
    $("#position").click(function(){   
      $("#position span").load("test.php");   
    });   
  });         
</script>  

Code (markup):

The above works fine but I need to be able to load a function that is in a php class. For example, given

<?php
class myclass {

  function myclass(){
  }
  
  function get_text() {
     return 'hello';
  }
}

PHP:

How would I call the get_text function using the jquery code above (or whatever jquery code it would need)? The normal (php) method would be to use $myclass->get_text() but that doesn't work if I replace test.php with it.

I've tried searching the web for this but the words class and function have meanings in jquery so the results weren't what I was looking. I would appreciate any help with this.

 

usually done with ajax request 

$.ajax({  url: 'test.php?action=gettext',  success: function(data) {
      alert(data);  }});

PHP:

and your test.php file :

<?php
 if (!empty($_GET['action'])){
    if($_GET['action'] == "gettext"){
          echo "hello";
    }
}
?>

PHP:

if everything goes correctly you should see a alert with hello that it got from the php script.

good luck