Mobile regexp user agent

Question

i have to check in my script for user agent for mobile.

i have

if(preg_match(\'/lg|iphone|blackberry|opera/i\', $_SERVER[\'HTTP_USER_AGENT\'])) { ...         


        

Answer 1

You can use the meta character ^ to denote start of string. You can read more about it here. The following pattern will only match lg if it's in the start of the string:

^lg|iphone|blackberry|opera/

You can see a simple example it in action here: http://regexr.com?2vjec

Answer 2

I'm using this library to detect OS and browser info http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/