判断服务器系统

<?phpif(PATH_SEPARATOR==':') echo 'Linux';else echo 'Windows';echo '<hr/>';echo php_uname();echo "<br>";echo PHP_OS;echo "<br>";/* Some possible outputs: Linux localhost 2.4.21-0.13mdk #1 Fri Mar 14 15:08:06 EST 2003 i686 Linux FreeBSD localhost 3.2-RELEASE #15: Mon Dec 17 08:46:02 GMT 2001 FreeBSD Windows NT XN1 5.1 build 2600 WINNT */if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {echo 'This is a server using Windows!';} else {echo 'This is a server not using Windows!';}