purl documentation?

[erm3nda]

Hi.

I have not way to contact you except this form.

Just really interested on this type of solution to fix non accesible cURL libraries.
I wanna know wich functions/parameters works and wich not, to parse a php file then detect which functions will not work.

Im so interested on make this working with Glype PHP webproxy, but i think it has a lot of functions not supported yet.

Also, i see some forks. Are theese forks more or less evolved than this?

Thank you in advance.
Srry about my English :)