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

There are so many ways to check whether www contains or not.

one of the way is:

if(strpos($_SERVER['HTTP_HOST'], `www`) !== false) {
    echo "WWW found";
} else {
    echo "WWW not found";
}