一个可以获取linux 系统硬件相关信息的类
浏览数：24 /
时间：2015年06月20日
<?php
class CServerInfo
{
static public function getCpuData($speed = 0.5)
{
if (false === ($prevVal = @file("/proc/stat"))) return false;
$prevVal = implode($prevVal, PHP_EOL);
$prevArr = explode(‘ ‘, trim($prevVal));
$prevTotal = $prevArr[2] + $prevArr[3] + $prevArr[4] + $prevArr[5];
$prevIdle = $prevArr[5];
usleep($speed * 1000000);
$val = @file("/proc/stat");
$val = implode($val, PHP_EOL);
$arr = explode(‘ ‘, trim($val));
$total = $arr[2] + $arr[3] + $arr[4] + $arr[5];
$idle = $arr[5];
$intervalTotal = intval($total - $prevTotal);
return round(100 * (($intervalTotal - ($idle - $prevIdle)) / $intervalTotal),2);
}
/**
* Cpu相关信息
* @return array|bool
*/
static public function getCpuInfoData()
{
if (false === ($str = @file("/proc/cpuinfo"))) return false;
$str = implode("", $str);
@preg_match_all("/model\s+name\s{0,}\:+\s{0,}([\w\s\)\(\@.-]+)([\r\n]+)/s", $str, $model);
@preg_match_all("/cpu\s+MHz\s{0,}\:+\s{0,}([\d\.]+)[\r\n]+/", $str, $mhz);
@preg_match_all("/cache\s+size\s{0,}\:+\s{0,}([\d\.]+\s{0,}[A-Z]+[\r\n]+)/", $str, $cache);
@preg_match_all("/bogomips\s{0,}\:+\s{0,}([\d\.]+)[\r\n]+/", $str, $bogomips);
$res = array();
if (false !== is_array($model[1])) {
$res[‘cpu‘][‘num‘] = sizeof($model[1]);
if ($res[‘cpu‘][‘num‘] == 1)
$x1 = ‘‘;
else
$x1 = ‘ ב . $res[‘cpu‘][‘num‘];
$res[‘cpu‘][‘mhz‘] = $mhz[1][0];
$mhz[1][0] = ‘ <br /> 频率:‘ . $mhz[1][0];
$res[‘cpu‘][‘cache‘] = $cache[1][0];
$cache[1][0] = ‘ <br /> 二级缓存:‘ . $cache[1][0];
$res[‘cpu‘][‘bogomips‘] = $bogomips[1][0];
$bogomips[1][0] = ‘ <br /> Bogomips:‘ . $bogomips[1][0];
$res[‘cpu‘][‘model‘][] = $model[1][0] . $mhz[1][0] . $cache[1][0] . $bogomips[1][0] . $x1;
if (false !== is_array($res[‘cpu‘][‘model‘])) $res[‘cpu‘][‘model‘] = implode("<br />", $res[‘cpu‘][‘model‘]);
if (false !== is_array($res[‘cpu‘][‘mhz‘])) $res[‘cpu‘][‘mhz‘] = implode("<br />", $res[‘cpu‘][‘mhz‘]);
if (false !== is_array($res[‘cpu‘][‘cache‘])) $res[‘cpu‘][‘cache‘] = implode("<br />", $res[‘cpu‘][‘cache‘]);
if (false !== is_array($res[‘cpu‘][‘bogomips‘])) $res[‘cpu‘][‘bogomips‘] = implode("<br />", $res[‘cpu‘][‘bogomips‘]);
}
return $res;
}
/**
* 内存相关数据
* 单位为B
* @return array|bool
*/
static public function getMenData()
{
if (false === ($str = @file("/proc/meminfo"))) return false;
$str = implode("", $str);
preg_match_all("/MemTotal\s{0,}\:+\s{0,}([\d\.]+).+?MemFree\s{0,}\:+\s{0,}([\d\.]+).+?Cached\s{0,}\:+\s{0,}([\d\.]+).+?SwapTotal\s{0,}\:+\s{0,}([\d\.]+).+?SwapFree\s{0,}\:+\s{0,}([\d\.]+)/s", $str, $buf);
preg_match_all("/Buffers\s{0,}\:+\s{0,}([\d\.]+)/s", $str, $buffers);
$res = array();
$res[‘memTotal‘] = round($buf[1][0] / 1024, 2);
$res[‘memFree‘] = round($buf[2][0] / 1024, 2);
$res[‘memBuffers‘] = round($buffers[1][0] / 1024, 2);
$res[‘memCached‘] = round($buf[3][0] / 1024, 2);
$res[‘memUsed‘] = $res[‘memTotal‘] - $res[‘memFree‘];
$res[‘memPercent‘] = (floatval($res[‘memTotal‘]) != 0) ? round($res[‘memUsed‘] / $res[‘memTotal‘] * 100, 2) : 0;
$res[‘memRealUsed‘] = $res[‘memTotal‘] - $res[‘memFree‘] - $res[‘memCached‘] - $res[‘memBuffers‘]; //真实内存使用
$res[‘memRealFree‘] = $res[‘memTotal‘] - $res[‘memRealUsed‘]; //真实空闲
$res[‘memRealPercent‘] = (floatval($res[‘memTotal‘]) != 0) ? round($res[‘memRealUsed‘] / $res[‘memTotal‘] * 100, 2) : 0; //真实内存使用率
$res[‘memCachedPercent‘] = (floatval($res[‘memCached‘]) != 0) ? round($res[‘memCached‘] / $res[‘memTotal‘] * 100, 2) : 0; //Cached内存使用率
$res[‘swapTotal‘] = round($buf[4][0] / 1024, 2);
$res[‘swapFree‘] = round($buf[5][0] / 1024, 2);
$res[‘swapUsed‘] = round($res[‘swapTotal‘] - $res[‘swapFree‘], 2);
$res[‘swapPercent‘] = (floatval($res[‘swapTotal‘]) != 0) ? round($res[‘swapUsed‘] / $res[‘swapTotal‘] * 100, 2) : 0;
//判断内存如果小于1G，就显示M，否则显示G单位
if ($res[‘memTotal‘] < 1024) {
$memTotal = $res[‘memTotal‘] . " M";
$mt = $res[‘memTotal‘] . " M";
$mu = $res[‘memUsed‘] . " M";
$mf = $res[‘memFree‘] . " M";
$mc = $res[‘memCached‘] . " M"; //cache化内存
$mb = $res[‘memBuffers‘] . " M"; //缓冲
$st = $res[‘swapTotal‘] . " M";
$su = $res[‘swapUsed‘] . " M";
$sf = $res[‘swapFree‘] . " M";
$swapPercent = $res[‘swapPercent‘];
$memRealUsed = $res[‘memRealUsed‘] . " M"; //真实内存使用
$memRealFree = $res[‘memRealFree‘] . " M"; //真实内存空闲
$memRealPercent = $res[‘memRealPercent‘]; //真实内存使用比率
$memPercent = $res[‘memPercent‘]; //内存总使用率
$memCachedPercent = $res[‘memCachedPercent‘]; //cache内存使用率
} else {
$memTotal = round($res[‘memTotal‘] / 1024, 3) . " G";
$mt = round($res[‘memTotal‘] / 1024, 3) . " G";
$mu = round($res[‘memUsed‘] / 1024, 3) . " G";
$mf = round($res[‘memFree‘] / 1024, 3) . " G";
$mc = round($res[‘memCached‘] / 1024, 3) . " G";
$mb = round($res[‘memBuffers‘] / 1024, 3) . " G";
$st = round($res[‘swapTotal‘] / 1024, 3) . " G";
$su = round($res[‘swapUsed‘] / 1024, 3) . " G";
$sf = round($res[‘swapFree‘] / 1024, 3) . " G";
$swapPercent = $res[‘swapPercent‘];
$memRealUsed = round($res[‘memRealUsed‘] / 1024, 3) . " G"; //真实内存使用
$memRealFree = round($res[‘memRealFree‘] / 1024, 3) . " G"; //真实内存空闲
$memRealPercent = $res[‘memRealPercent‘]; //真实内存使用比率
$memPercent = $res[‘memPercent‘]; //内存总使用率
$memCachedPercent = $res[‘memCachedPercent‘]; //cache内存使用率
}
$res[‘u_memTotal‘] = $memTotal;
$res[‘u_memTotal‘] = $mt;
$res[‘u_memUsed‘] = $mu;
$res[‘u_memFree‘] = $mf;
$res[‘u_memCached‘] = $mc; //cache化内存
$res[‘u_memBuffers‘] = $mb; //缓冲
$res[‘u_swapTotal‘] = $st;
$res[‘u_swapUsed‘] = $su;
$res[‘u_swapFree‘] = $sf;
$res[‘u_swapPercent‘] = $swapPercent;
$res[‘u_memRealUsed‘] = $memRealUsed; //真实内存使用
$res[‘u_memRealFree‘] = $memRealFree; //真实内存空闲
$res[‘u_memRealPercent‘] = $memRealPercent; //真实内存使用比率
$res[‘u_memPercent‘] = $memPercent; //内存总使用率
$res[‘u_memCachedPercent‘] = $memCachedPercent; //cache内存使用率
return $res;
}
/**
* 硬盘情况
* @return array
*/
static public function getDiskData()
{
$iTotal = round(@disk_total_space(".") / (1024 * 1024 * 1024), 3); //总
$iUsableness = round(@disk_free_space(".") / (1024 * 1024 * 1024), 3); //可用
$iImpropriate = $iTotal - $iUsableness; //已用
$iPercent = (floatval($iTotal) != 0) ? round($iImpropriate / $iTotal * 100, 2) : 0;
$sDesc = ‘‘;
if($iPercent>85){
$sDesc ="<span style=‘color: #f40‘>磁盘空间不多了，建议近期清理一下日志</span>";
}
if($iPercent>95){
$sDesc ="<span style=‘color: #f40‘>磁盘空间快满了，可能会影响审计系统正常使用，建议立即清理日志</span>";
}
return array(
‘iTotal‘ => $iTotal,
‘iUsableness‘ => $iUsableness,
‘iImpropriate‘ => $iImpropriate,
‘iPercent‘ => $iPercent,
‘sDesc‘ => $sDesc,
);
}
/**
* 网接相关流量信息
*/
static public function getInterfaceData()
{
//mii-tool
$strs = @file("/proc/net/dev");
for ($i = 2; $i < count($strs); $i++) {
preg_match_all("/([^\s]+):[\s]{0,}(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/", $strs[$i], $info);
$NetOutSpeed[$i] = $info[10][0]; //入网实时
$NetInputSpeed[$i] = $info[2][0]; //出网实时
$NetInput[$i] = self::formatsize($info[2][0]); //入网流量
$NetOut[$i] = self::formatsize($info[10][0]); //出网流量
}
}
/**
* 单位自动转换
* @param $size
* @return string
*/
static public function formatSize($size)
{
$danwei = array(‘ B ‘, ‘ K ‘, ‘ M ‘, ‘ G ‘, ‘ T ‘);
$allsize = array();
$i = 0;
for ($i = 0; $i < 5; $i++) {
if (floor($size / pow(1024, $i)) == 0) {
break;
}
}
$allsize1 = array();
for ($l = $i - 1; $l >= 0; $l--) {
$allsize1[$l] = floor($size / pow(1024, $l));
if (isset($allsize1[$l + 1])) {
$allsize[$l] = $allsize1[$l] - $allsize1[$l + 1] * 1024;
}
}
$len = count($allsize);
$fsize = "";
for ($j = $len - 1; $j >= 0; $j--) {
$fsize = $fsize . $allsize[$j] . $danwei[$j];
}
return $fsize;
}
}
?>
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