Question

I am trying to learn the Jquery AJAX function but am struggling to work out how to pass PHP variables into my main document.

This is what I currently have:

<script>
  var refreshId = setInterval(function() {
    $.ajax({
      url: "test.php",
      dataType: "json", //the return type data is jsonn
      success: function(data){ // <--- (data) is in json format
        $('#testdiv').html(data.test1);
        $('#testdiv').append(html(data.test2));
        //parse the json data
      }
    });

}, 1000);
</script>

Answer 1

You should use json or xml format and parse it, and get the variable.

<script src="jquery.js"></script>
<script>
    $.ajax({
      url: "test.php",
      dataType: "json", //the return type data is jsonn
      success: function(data){ // <--- (data) is in json format
        alert(data.test1);
        //parse the json data
      }
    });
</script>

on test.php

<?php

$test = array();
$test['test1'] = '1';
$test['test2'] = '2';
$test['test3'] = '3';

echo json_encode($test);
//echo nothing after this //not even html