Beneficial site spamming framework

Folks: I've been getting spam comments on my personal blog (runs on self-written PHP blog software). I'd like to test some methods I've devised to prevent or block it. Does anyone know of a very lightweight framework for simulating an automated "form fill-out" on a site? Something where you could just add some code to designate the site for the "attack" and then what fields you wanted to send? This should be a relatively simple task for PHP and curl, but I'm not really familiar with the headers and that part of the HTTP conversation. Yes, I know this is a risky question for a public list. Feel free to contact me privately if you think the answer shouldn't be in the archives of a public list. Likewise, if you can point me to a source of quickly absorbable research on the subject. I frankly don't know how I'd google such a thing. Paul -- Paul M. Foster http://noferblatz.com http://quillandmouse.com