Can I POST a file to a third party site?

Send file data as if it came from a form

[grahamstewart]

I'd like to write some PHP scripts that will:

allow the user to enter the address of a file

download that file to a temporary file on my server

monkey about with the file a little

then submit the temporary file to another site in the same manner as if it had been POSTed from a form on that site.

So basically what I'm asking is: what is the best way to POST a file to a third party site so that it appears as if the file had simply been selected on a form?

I guess I could open a socket to the third party site and send all the neccessary HTTP data that way, but I was hoping for something a little more high level.

[jatar_k]

have you looked at curl [ca.php.net]?

[grahamstewart]

Sweet - that looks like the business! :)

Thanks very much jatar