Manipulation of string help needed

[Anon]

Hi all ...
I am taking the HTTP_REFERER and chopping it up into pieces.

And an example, let's say ...
HTTP_REFERER was equalled to:
http://phpbuilder.com/forum/post.php3?num=2

Then ...
$sp_domain = "/";
$arr = split($sp_domain, $str);
$referral_domain = "$arr[0]//$arr[1]$arr[2]/";

'ECHO WOULD SHOW THE FOLLOWING
$referral_domain = http://www.phpbuilder.com

How would I go about doing this for the string portion though, so I can see what the query string of it is.
If I stry a split at a ? I get an error.

Maybe there is an easier way to do this on a http_referer.

Any help would be appreciated.

Thank You

Jared

[Anon]

You probably just need to escape the ? with a \ like so:

split ("\?",$string);