[PHP] Getting screen resolution and color depth

[Salty Marine]

Greetings to You:

How do I get the user's screen resolution and color depth?  Here's how it is
done in Javascript.  I want to do it and put the results into a PHP varibal.

<Script>document.write(screen.width + " x " + screen.height)</script>
<Script>document.write(screen.colorDepth + " bit")</script>

Regards,
Salty