Extract Scheme and Host from HTTP_REFERER

Question

I have $_SERVER[\'HTTP_REFERER\'] — pretend it is http://example.com/i/like/turtles.html. What would I need to do to get just the http://example.com

Answer 1

You could use a regular expression:

if (isset($_SERVER['HTTP_REFERER']) && preg_match('@^[^/]+://[^/]+@', $_SERVER['HTTP_REFERER'], $match)) {
    var_dump($match[0]);
}

Or you could use the parse_url function.