phpstudy|php FreeBSD系统探测程序

function sys_freebsd() {
 //CPU
 if (false === ($res["cpu"]["num"] = get_key("hw.ncpu"))) return false;
 $res["cpu"]["model"] = get_key("hw.model");

 //LOAD AVG
 if (false === ($res["loadAvg"] = get_key("vm.loadavg"))) return false;

 //UPTIME
 if (false === ($buf = get_key("kern.boottime"))) return false;
 $buf = explode(" ", $buf);
 $sys_ticks = time() - intval($buf[3]);
 $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) $res["uptime"] = $days."天";
 if ($hours !== 0) $res["uptime"] .= $hours."小时";
 $res["uptime"] .= $min."分钟";

 //MEMORY
 if (false === ($buf = get_key("hw.physmem"))) return false;
 $res["memTotal"] = round($buf/1024/1024, 2);
 $buf = explode("n", do_command("vmstat", ""));
 $buf = explode(" ", trim($buf[2]));

 $res["memFree"] = round($buf[5]/1024, 2);
 $res["memUsed"] = ($res["memTotal"]-$res["memFree"]);
 $res["memPercent"] = (floatval($res["memTotal"])!=0)?round($res["memUsed"]/$res["memTotal"]*100,2):0;

 $buf = explode("n", do_command("swapinfo", "-k"));
 $buf = $buf[1];
 preg_match_all("/([0-9]+)s+([0-9]+)s+([0-9]+)/", $buf, $bufArr);
 $res["swapTotal"] = round($bufArr[1][0]/1024, 2);
 $res["swapUsed"] = round($bufArr[2][0]/1024, 2);
 $res["swapFree"] = round($bufArr[3][0]/1024, 2);
 $res["swapPercent"] = (floatval($res["swapTotal"])!=0)?round($res["swapUsed"]/$res["swapTotal"]*100,2):0;

 return $res;
}

//取得参数值 FreeBSD
function get_key($keyName) {
 return do_command("sysctl", "-n $keyName");
}

//确定执行文件位置 FreeBSD
function find_command($commandName) {
 $path = array("/bin", "/sbin", "/usr/bin", "/usr/sbin", "/usr/local/bin", "/usr/local/sbin");
 foreach($path as $p) {
  if (@is_executable("$p/$commandName")) return "$p/$commandName";
 }
 return false;
}

//执行系统命令 FreeBSD
function do_command($commandName, $args) {
 $buffer = "";
 if (false === ($command = find_command($commandName))) return false;
 if ($fp = @popen("$command $args", "r")) {
  while (!@feof($fp)){
   $buffer .= @fgets($fp, 4096);
  }
  return trim($buffer);
 }
 return false;
}

phpstudy|php FreeBSD系统探测程序

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