Possible Values For: PHP_OS

Question

Is there a place to find a list of the possible values for the PHP predefined constant PHP_OS ? I\'d like to use this value for a system requirements check, but

Answer 1

I think a better solution to do a 'requirement check' would be to actually use things that you need to know work properly and see what happens.

For example, there are constants for directory separators, functions like realpath(), etc to deal with directories on different operating systems.

What, specifically, are you trying to do?