Whether or not classic ASP works is not the debate.
Microsoft abandoned it in 2000 in favor of .NET. They have made it increasingly difficult to enable in the OS's they have released since then.
I see no evidence of PHP being abandoned, it is an open source solution that has a very strong following and development community.
Of course, I cant speak for PHP in the long term, but i can say that the days for ASP are numbered.
Our plans are to continue development for PHP. We do not have plans to adopt other languages at this time