Is there a way we can integrate asp.net with php.?

I know that an ASP.NET application can work with a PHP application in IIS using fastCGI, but is there a way to integrate both applications so that I can use the codes from php and Asp.net working together.

during my research, I found a third-party tool known as Phalanger that converts PHP code to MSIL and runs with a .net application, but the problem is that I have a beta version and the session_start () function does not work, Any other good ideas ??? if yes, please let me know.