Does PHP have a function to detect the OS it's running on?

Question

I wouldn\'t know under what keyword to look for this in the PHP database, so I\'m asking here.

Reason I want to know is because of how different Operating Systems handle

Answer 1

Lots of answers aleady, but here is my 2cents:

function windows_server()
#   Purpose:    Check if server is Windows
{
    return in_array(strtolower(PHP_OS), array("win32", "windows", "winnt"));
}

## --------------------------------------------------------

function linux_server()
#   Purpose:    Check if server is Linux
{
    return in_array(strtolower(PHP_OS), array("linux", "superior operating system"));
}