PHP调用COM获得服务器硬件信息

function sys_windows() {
    $objLocator = new COM("WbemScripting.SWbemLocator");
    $wmi = $objLocator->ConnectServer();
    $prop = $wmi->get("Win32_PnPEntity");
    //CPU
    $cpuinfo = GetWMI($wmi,"Win32_Processor", array("Name","L2CacheSize","NumberOfCores"));
    $res['CPU个数'] = $cpuinfo[0]['NumberOfCores'];
    if (null == $res['CPU个数']) {
        $res['CPU个数'] = 1;
    }
    for ($i=0;$i<$res['cpu']['num'];$i++){
        $res['CPU型号'] .= $cpuinfo[0]['Name']."<br>";
        $res['二级缓存'] .= $cpuinfo[0]['L2CacheSize']."<br>";
    }
    // SYSINFO
    $sysinfo = GetWMI($wmi,"Win32_OperatingSystem", array('LastBootUpTime','TotalVisibleMemorySize','FreePhysicalMemory','Caption','CSDVersion','SerialNumber','InstallDate'));
    $res['操作系统版本'] = $sysinfo[0]['Caption']." ".$sysinfo[0]['CSDVersion'];
    $res['SerialNumber'] = "{$sysinfo[0]['SerialNumber']} 于".date('Y年m月d日H:i:s',strtotime(substr($sysinfo[0]['InstallDate'],0,14)))."安装";
    //UPTIME
    $res['最后重启时间'] = $sysinfo[0]['LastBootUpTime'];

    $sys_ticks = 3600*8 + time() - strtotime(substr($res['最后重启时间'],0,14));
    $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) $ress['day'] = $days."天";
    if ($hours !== 0) $ress['hours'] .= $hours."小时";
    $res['最后重启时间'] = $ress['day'].$ress['hours'].$min."分钟";

    //MEMORY
    $res['物理内存'] = $sysinfo[0]['TotalVisibleMemorySize'];
    $res['剩余内存'] = $sysinfo[0]['FreePhysicalMemory'];
    $res['已使用内存'] = $res['物理内存'] - $res['剩余内存'];
    $res['使用率'] = round($res['已使用内存'] / $res['物理内存']*100,2);

    $swapinfo = GetWMI($wmi,"Win32_PageFileUsage", array('AllocatedBaseSize','CurrentUsage'));

    // TODO swp区获取
    $res['交换分区'] = $swapinfo[0][AllocatedBaseSize];
    $res['已经使用'] = $swapinfo[0][CurrentUsage];
    $res['剩余内存'] = $res['swapTotal'] - $res['swapUsed'];
    $res['使用率'] = (floatval($res['swapTotal'])!=0)?round($res['swapUsed']/$res['swapTotal']*100,2):0;

    // LoadPercentage
    $loadinfo = GetWMI($wmi,"Win32_Processor", array("LoadPercentage"));
    $res['系统平均负载'] = $loadinfo[0]['LoadPercentage'];

    return $res;
}

function GetWMI($wmi,$strClass, $strValue = array()) {
    $arrData = array();

    $objWEBM = $wmi->Get($strClass);
    $arrProp = $objWEBM->Properties_;
    $arrWEBMCol = $objWEBM->Instances_();
    foreach($arrWEBMCol as $objItem) {
        @reset($arrProp);
        $arrInstance = array();
        foreach($arrProp as $propItem) {
            eval("\$value = \$objItem->" . $propItem->Name . ";");
            if (empty($strValue)) {
                $arrInstance[$propItem->Name] = trim($value);
            } else {
                if (in_array($propItem->Name, $strValue)) {
                    $arrInstance[$propItem->Name] = trim($value);
                }
            }
        }
        $arrData[] = $arrInstance;
    }
    return $arrData;
}