How can I get the current web directory from the URL?

Question

If I have a URL that is http://www.example.com/sites/dir/index.html, I would want to extract the word \"sites\". I know I have to use regular expressions but for some reason my

Answer 1

Use the dirname function like this:

$dir =  dirname($_SERVER['PHP_SELF']);
$dirs = explode('/', $dir);
echo $dirs[0]; // get first dir