Check for file tampering?

[Anon]

I was just wondering if anyone ( usin PHP 4.0.1pl2 ) has written a script that computes a hash value for a file ( txt or otherwise ), then stores the newly computed value in a safe location, allowing the admin. to check the same file at a later date for tampering? ( the hash value would have changed )?

I was attempting to work out a solution using the uniqid() function but to no avail.
In case it helps, I am using the win32 binary.

Thanks, -K.

[Anon]

read the file into $the_file and do this
$checksum = md5($the_file);

That should work...

Andreas Bernhardsen

[Anon]

Thanks Andreas!

I'll try it tonight. I really appreciate the help.

-Katie.