get $_SERVER['HTTP_X_REQUESTED_WITH'] with iframe

Question

I'm working with Colorbox and if I specify to use an iframe with it then the $_SERVER['HTTP_X_REQUESTED_WITH'] variable is no longer available to me. I need that in order to detect if ajax has loaded so then I can include a header/footer or not.

Anyway to get this variable or is there another variable that I can get when I use iframe?

Thanks.

Answer 1

The variable name might be different you could try print_r($_SERVER); to see the header is different. Although a better approach would be to set a $_GET variable like ?ajax=true

Answer 2

Setting/changing the <iframe>'s src attribute using JavaScript is definitely not using XMLHttpRequest to load the target page as you seem to think.

Rather pass an extra request parameter or pathinfo. E.g.

iframe.src = 'newpage.php?loadedByJS=true';

Which you in turn can check by $_GET['loadedByJS'].