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

Check the $_SERVER variable.

echo "
";
print_r($_SERVER);


You can then use strstr (or any string comparison function) to check if you are on Windows. In this example, I checked the SERVER_SIGNATURE but you can use whatever key you want.

$isWindows = strstr($_SERVER[SERVER_SIGNATURE], "Win32") !== FALSE;