Damn, if no one else has anything... with PHP, I guess I'd start with something like this:
Code:
$file = file($url); // get file contents
if ( eregi("http://www.somedomain.com/some-page.htm", $file) ) {
DO SOMETHING
} // if file has url
You can use it both ways. Regex in the eregi function would allow you to check for valid links, but my brain is too mushy to think about that right now.
I imagine that's not quite what you're looking for though.
