On 3 Aug 2011, at 21:07, Daevid Vincent wrote:

> I'm working on a mobile site and from the various searches and reading (and
> even code fragments I've inherited for the project), they make reference to:
> However, when I hit a phpinfo(); page using both an Android MyTouch 3G (2.2)
> and an Apple iPhone 3G, there are nothing even close to those. All of the
> 'HTTP_X_*' headers are absent and there is no HTTP_PROFILE either.
> http://www.dpinyc.com/literature/resources/code-bank/php-lightweight-device-
> detection/
> http://mobiforge.com/developing/blog/useful-x-headers
> http://blog.svnlabs.com/tag/_serverhttp_x_wap_profile/
> Do I need to enable something in Apache or PHP??
> PHP Version 5.3.6
> Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
>    with Xdebug v2.0.5, Copyright (c) 2002-2008, by Derick Rethans
> and 
> $ httpd -v
> Server version: Apache/2.2.17 (FreeBSD)

I may be wrong, but as I understand it those headers are for older WAP 
browsers, not modern mobile-based browsers which are HTML-capable. The best way 
I've found to detect mobile devices is to examine the user agent header. While 
it's not 100% reliable it's the best method available.

This is the function I've used in the past to detect mobile devices: 
https://gist.github.com/1124666. I haven't used it for a little while so there 
are probably new devices out there that it can't detect but it should give you 
a good starting point.


Stuart Dallas
3ft9 Ltd
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