Combo using load from php Error

Dear all
I am using the load from php for my combo box using the code:

var z = new dhtmlXCombo(“combo_zone”, “alfa”, 200);
z.enableFilteringMode(true, “/Includes/loadCboStock.php”, true, true);

but i am getting the error when ever i try to render my php page:

This page contains the following errors:
error on line 2 at column 1: Extra content at the end of the document
Below is a rendering of the page up to the first error.

Any clue why?
Any help would be the most welcomed…
Thanks a lot


We need the complete demo to reproduce the problem locally.