Description:
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I use a class called "main" in my script. When testing with PHP5 I got:

Fatal error: Cannot use 'main' as class name as it is reserved in D:\Inetpub\wwwroot\test.php on line n

I'm assuming that this means PHP5 will provide some standard way for defining a main class. I couldn't find anything about it anywhere. Instead of renaming all my "main" classes I would much rather like to start using this new main feature right away. 

Reproduce code:
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class main {


}


Expected result:
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Standard class definition or main class definition.

Actual result:
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Fatal error: Cannot use 'main' as class name as it is reserved in D:\Inetpub\wwwroot\test.php on line n