How to detect in php that a script is answering for a mobile?

Hi,

I want to make a mobile version of my internal web site in which I have a lot of custom php scripts that generates article contents. Thus, I installed the mobile Joomla! extension. But I need to adapt my scripts for the mobile template.

Is there a way for my php scripts todetect (in php) is has been called from a mobile ? And how a script knows that the mobile template is running of the default one?

Thanks,
Gilbert.

The simplest check is

but the check will fail if your scripts run before Joomla triggers onAfterRoute event.