PHP - How to test $_SERVER['HTTP_ACCEPT_LANGUAGE']

[mickey01]

I have a function that can be used to redirect the user to different web pages based on the settings of $_SERVER['HTTP_ACCEPT_LANGUAGE'].However, I cannot find a method with Firefox to test this code.\[code\]Firefox 3.6.8Tools/Options/Advanced/FontsFonts for // changed this partDefault Character Encoding // changed this part\[/code\]However, the return results from $_SERVER['HTTP_ACCEPT_LANGUAGE'] is always as follows:\[code\]HTTP_ACCEPT_LANGUAGE: en-us,en;q=0.5\[/code\]Anyone here knows what I should do?Thank you