function getUptime () {
   $fd = fopen('/proc/uptime', 'r');
   $ar_buf = split(' ', fgets($fd, 4096));
   fclose($fd);
       $sys_ticks = trim($ar_buf[0]);
       $min   = $sys_ticks / 60;
   $hours = $min / 60;
   $days  = floor($hours / 24);
   $hours = floor($hours - ($days * 24));
   $min   = floor($min - ($days * 60 * 24) - ($hours * 60));
       if ($days != 0) {
     $result = "$days days ";
   }
       if ($hours != 0) {
     $result .= "$hours hours ";
   }  
   $result .= "$min minutes";
       return $result;
 }
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