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Check if Desktop Computer is viewing mobile site and redirect

In PHP how can I check if a desktop browser is viewing my mobile site and redirect to the desktop site?

I have a microsite that's mobile only and if a desktop hits it I want to redirect to the main company home page.

I tried this:

<?php
$useragent=$_SERVER['HTTP_USER_AGENT'];
if(strpos($useragent,'Windows') == true || strpos($useragent,'Mac') == true)
{
    header( 'Location: http://you.tc' ) ;
}
?>

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But on iphone it's redirecting to the home site and should stay on mobile. I'm assuming there is something else in the user agent I need to check.

ASKER CERTIFIED SOLUTION

Michael Fowler

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Nathan Riley

ASKER

Changed the logic to the reverse, but worked, thanks.

Ray Paseur

There's a different way of thinking about this problem today. We use Twitter Bootstrap instead of building separate sites and redirecting. You might want to look it up. The design paradigm is "mobile first" and Bootstrap provides for this, giving you a fluid and adaptable viewport that scales nicely to different devices. Just a thought...

Nathan Riley

ASKER

Agreed, but client wanted it to not be visible by desktops, and if so then redirected to their company homepage.

Ray Paseur

Uhh... Why not help the client understand the current technology. Twitter Bootstrap is not exactly new. It's not a model-T ford, but it's completely mainstream and makes it possible for a single web application to serve sites to many different browser/viewport combinations. In other words, it is the framework for many a company home page!

Nathan Riley

ASKER

It's a microsite for mobile only for a mobile convention, no need for desktop version.