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How to obtain real-time CPU memory usage in PHP

小云云
Release: 2023-03-20 08:52:01
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后台实时监控服务器的CUP与内存占用率的场景很常见,虽然没做过,但是着手写代码之前我真没想到会花2个多小时才最终实现。本文主要和大家介绍了php在windows环境下获得 cpu 内存实时使用率的相关资料,非常不错,具有参考借鉴价值,需要的朋友可以参考下,希望能帮助到大家。

网上虽然搜 PHP CUP 内存 使用率 这一类关键字出来的文章一大把,但大都是在Linux环境下,windows下只有提出靠cmd语句实现的观点,但少有实际直接可行的代码,辗转试了一遍 wmic , systeminfo 各种并不熟稔的cmd命令,并没有找到可行的方案,最终通过百度知道 的一篇答案找到利用vbs获取的实现方式,稍加改善,可以在windows环境下直接使用。

类代码


class SystemInfoWindows
{
 /**
  * 判断指定路径下指定文件是否存在,如不存在则创建
  * @param string $fileName 文件名
  * @param string $content 文件内容
  * @return string 返回文件路径
  */
 private function getFilePath($fileName, $content)
 {
  $path = dirname(__FILE__) . "\\$fileName";
  if (!file_exists($path)) {
   file_put_contents($path, $content);
  }
  return $path;
 }
 /**
  * 获得cpu使用率vbs文件生成函数
  * @return string 返回vbs文件路径
  */
 private function getCupUsageVbsPath()
 {
  return $this->getFilePath(
   'cpu_usage.vbs',
   "On Error Resume Next
    Set objProc = GetObject(\"winmgmts:\\\\.\\root\cimv2:win32_processor='cpu0'\")
    WScript.Echo(objProc.LoadPercentage)"
  );
 }
 /**
  * 获得总内存及可用物理内存JSON vbs文件生成函数
  * @return string 返回vbs文件路径
  */
 private function getMemoryUsageVbsPath()
 {
  return $this->getFilePath(
   'memory_usage.vbs',
   "On Error Resume Next
    Set objWMI = GetObject(\"winmgmts:\\\\.\\root\cimv2\")
    Set colOS = objWMI.InstancesOf(\"Win32_OperatingSystem\")
    For Each objOS in colOS
     Wscript.Echo(\"{\"\"TotalVisibleMemorySize\"\":\" & objOS.TotalVisibleMemorySize & \",\"\"FreePhysicalMemory\"\":\" & objOS.FreePhysicalMemory & \"}\")
    Next"
  );
 }
 /**
  * 获得CPU使用率
  * @return Number
  */
 public function getCpuUsage()
 {
  $path = $this->getCupUsageVbsPath();
  exec("cscript -nologo $path", $usage);
  return $usage[0];
 }
 /**
  * 获得内存使用率数组
  * @return array
  */
 public function getMemoryUsage()
 {
  $path = $this->getMemoryUsageVbsPath();
  exec("cscript -nologo $path", $usage);
  $memory = json_decode($usage[0], true);
  $memory['usage'] = Round((($memory['TotalVisibleMemorySize'] - $memory['FreePhysicalMemory']) / $memory['TotalVisibleMemorySize']) * 100);
  return $memory;
 }
}
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调用方式


$info = new SystemInfoWindows();
$cpu = $info->getCpuUsage();
$memory = $info->getMemoryUsage();
echo "当前系统CPU使用率:{$cpu}%,内存使用率{$memory['usage']}%";
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