Question

i need help about how i can run a MySQL query (using PHP) everytime, when Drop-down is changed,the query is this one :
$sql = "TRUNCATE TABLE rabid_ratings";
$re = mysql_query($sql) or die(mysql_error());

So i dont need to pass any variables, just run it when drop-down is changed. Thank you guys

Answer 1

First of all, it’s a good idea to use jQuery for this task. Include the latest jQuery source (via google code api, for example), then insert this to the HTML:

<script type="text/javascript">
  function truncate() {
    $.post("http://yourserver.com/truncate.php", { truncate: "1" } );
    return true;
  }
</script>
<select name="truncate" onChange="truncate();">
  <option>...</option>
</select>

and your truncate.php file must have:

<?PHP

  if ($_POST['truncate'] == 1) {
    // sql query
  }

?>