Detecting Google in a php script?

[georgec]

Does anyone know how to detect if Google is the entity executing a script, such as a link redirect script? I wish to disable SEs (specifically Google) from crawling and visiting a list of sites that are sent off using a php script, ie:

header("Location: [target.com");...]

Thanks,

[Nick_W]

if(!strstr($_SERVER['HTTP_USER_AGENT'],"Googlebot")) {
 header('location.php');
}

Nick

[georgec]

Thanks for the response. Is it just "Googlebot", or should I be searching for variations as well, such as low caps "G" among others?

Thanks,

[Nick_W]

Well AFAIK Gbot always identifies itself as the above...

I wrote a function for this that includes other SE's aswell but I'm damned if I can find it... UKGimp may have the link..?

Nick

[jatar_k]

you could just use

stristr [ca.php.net] for a case insensitive search, that would fix that problem.

[Nick_W]

[webmasterworld.com...]

msg15

Nick