Getting the screen resolution using PHP

Question

I need to find the screen resolution of a users screen who visits my website?

Answer 1

Directly with PHP is not possible but...

I write this simple code to save screen resolution on a PHP session to use on a image gallery.

window.location = "' . $_SERVER['PHP_SELF'] . '?width="+screen.width+"&height="+screen.height;';
}
?>