How to check if page url has www in it or not with PHP?

Question

In PHP, how can I check if the current page has www in the url or not?

E.g if the user is on http://www.example.com/something , how can I find that there\'s www in t

Answer 1

array_shift(explode(".",$_SERVER['HTTP_HOST']));

Should work, then examine the array for the presence of www. If you are simply trying to remove or force www, then a .htaccess rule is by far superior to PHP for that job.