Is thare any way to translate .net C# into PHP and vice versa?
I am not sure this is going to work without getting some wetware involved. For example, like this.
There is Phalanger, which is a .NET php compiler. If you compile php with it, you can then open the assembly in Reflector to get the C# or VB.NET.
Don't know about anything that will do it the other way around.
The jsc project can convert .net/C# to PHP for you.