php – shell_exec()问题,某些主机默认禁用它,寻找一个四处走动

我正在寻找另一种方法来获得相同的结果,任何帮助将不胜感激.

$uptime = shell_exec("cut -d. -f1 /proc/uptime");
$days = floor($uptime/60/60/24);
$hours = $uptime/60/60%24;
$mins = $uptime/60%60;
$secs = $uptime%60;
echo "<div><hr><strong>Uptime</strong>: this server is up $days days $hours hours $mins minutes and $secs seconds</div>";