Simple PHP Script To Detect The Current Platform

$uname = php_uname('s');

if (stripos($uname, 'win') === 0) {
    // Platform is Windows.
}
else if (stripos($uname, 'darwin') === 0) {
    // Platform is OSx.
}
else if (stripos($uname, 'linux') === 0) {
    // Platform is Linux.
}