Software to see what requests you make (post stuff) & PHP Q

[Chronicle]

Hello
I want to be able to go to a site, and find what information i send, so for example if i submit a forum, i want to be able to somehow store that (text file or whatever).

Then i want to write a script that will request the same thing, but change the values.

eg, i go to www.example.com, submit in a form value XXXXXXX. I then store how it is sent (eg via post, to example.com/2ndpage.php), in a text file or something such as:
[originalpage]|[new page with value]

Then in php i change the value XXXXXXX to YYYYYYY and submit it again just by running the script

Any tutorials for starting on this? Or premade scripts?


(BTW I want it for submitting to directories [to get more links for my site]. Not for any spammy things. Just easier than submitting 20 sites to one directory.)

 

[Augmented]

If you're a firefox user, then there are two essential extensions for analysing HTTP header information and data transmission between your browser and the server:

1. LiveHTTPHeaders - shows you live header information as you browse a page in a sidebar
2. Tamper Data - allows you to modify headers, POST data at the point of submitting a request. Handy for finding holes in your code as you can quickly insert classic XSS exploits and the like.

Other than that, get the Web Developer extension and use Forms>Display Form Details to get a listing of the variables the site expects from a submission.