Strip keywords from referring

[BoneHeadicus]

Anybody know a simple routine ( preferably PHP) to strip the keywords from the referring url and write them to the page?

[sugarkane]

It depends on the search engine - you need to work out the format of the URL, and then do an ereg_replace to delete the parts you don't need. An example for Google would be:

<?
$kwds=ereg_replace("^http\:\/\/www\.google\.com\/search\?q=", "", $HTTP_REFERER);
$kwds=ereg_replace("\+", " ", $kwds);
echo($kwds);
?>