blog.michaelfasani.com

This site is very helpful as a cross refrence from ASP to PHP and vice versa. This is by no means a complete list but it should help you convert ASP to PHP or the other way around. PHP has many more built in commands than ASP (VBScript), so several lines of code in ASP may convert to a single line in PHP.

Design215 Toolbox - ASP/PHP Cross Reference