php check if domain equals value, then perform action

Question

I need to take a variable that contains a URL, and check to see if the domain equals a certain domain, if it does, echo one variable, if not, echo another.

$domain = "http://www.google.com/docs";
if ($domain == google.com)
{ echo "yes"; }
else
{ echo "no"; }

Im not sure how to write the second line where it checks the domain to see if $domain contains the url in the if statement.

Answer 1

This is done by using parse_url:

$host = parse_url($domain, PHP_URL_HOST);
if($host == 'www.google.com') {
    // do something
}