獲取linux硬件信息 · 人手一本php工具書

[toc] >[warning]代碼放在linux服務器上訪問，才有效果 ## :-: **獲取CPU使用率** ~~~ /** * 獲取CPU使用率 */ function getCPURate($speed = 0.5){ if (false === ($prevVal = @file("/proc/stat"))) { //把整個文件讀入到數組中 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); } ~~~ ## :-: **獲取全部速度** ~~~ /** * 獲取全部速度 * @return array|bool */ function getAllRate(){ //打開進程文件指針。打開一個指向進程的管道，該進程由派生給定的 command 命令執行而產生 $fp = popen('top -b -n 2 | grep -E "^(Cpu|Mem|Tasks)"',"r");//獲取某一時刻系統cpu和內存使用情況 $rs = ""; while(!feof($fp)){ $rs .= fread($fp,1024); } pclose($fp); $sys_info = explode("\n",$rs); $tast_info = explode(",",$sys_info[3]);//進程數組 $cpu_info = explode(",",$sys_info[4]); //CPU占有量數組 $mem_info = explode(",",$sys_info[5]); //內存占有量數組 //正在運行的進程數 $tast_running = trim(trim($tast_info[1],'running')); //CPU占有量 $cpu_usage = trim(trim($cpu_info[0],'Cpu(s): '),'%us'); //百分比 //內存占有量 $mem_total = trim(trim($mem_info[0],'Mem: '),'k total'); $mem_used = trim($mem_info[1],'k used'); $mem_usage = round(100*intval($mem_used)/intval($mem_total),2); //百分比 /*硬盤使用率 begin*/ $fp = popen('df -lh | grep -E "^(/)"',"r"); $rs = fread($fp,1024); pclose($fp); $rs = preg_replace("/\s{2,}/",' ',$rs); //把多個空格換成 “_” $hd = explode(" ",$rs); $hd_avail = trim($hd[3],'G'); //磁盤可用空間大小單位G $hd_usage = trim($hd[4],'%'); //掛載點百分比 //print_r($hd); /*硬盤使用率 end*/ /*網絡使用率*/ if (false === ($prevVal = @file("/proc/net/dev"))) { return false; } $result = file_get_contents("/proc/net/dev"); preg_match("/lo:\s+\d+\s+\d+/", $result, $preg_str); $preg_str = str_replace("lo:",'',$preg_str); $preg_arr=explode(' ',$preg_str[0]); //var_dump($preg_arr,$result);die; $bytes = $preg_arr[1]; $packets = $preg_arr[2]; $net_usage = round($packets*100/$bytes,2); $all=[ 'cpu_rate'=>$cpu_usage, 'mem_rate'=>$mem_usage, 'disk_rate'=>$hd_usage, 'net_rate'=>$net_usage ]; return $all; } ~~~ ## :-: **獲取內存使用率** ~~~ /** * 獲取內存使用率 */ function getMemoryRate() { if (false === ($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']; //真實內存使用 // $res['memRealUsed'] = $res['memTotal'] - $res['memFree'] ; //真實內存使用 $res['memRealFree'] = $res['memTotal'] - $res['memRealUsed']; //真實空閑 $res['memRealPercent'] = (floatval($res['memTotal']) != 0) ? round($res['memRealUsed'] / $res['memTotal'] * 100, 2) : 0; //真實內存使用率 $res['memCachedPercent'] = (floatval($res['memCached']) != 0) ? round($res['memCached'] / $res['memTotal'] * 100, 2) : 0; //Cached內存使用率 $res['swapTotal'] = round($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'] / $res['swapTotal'] * 100, 2) : 0; //判斷內存如果小于1G，就顯示M，否則顯示G單位 if ($res['memTotal'] < 1024) { $memTotal = $res['memTotal'] . " M"; $mt = $res['memTotal'] . " M"; $mu = $res['memUsed'] . " M"; $mf = $res['memFree'] . " M"; $mc = $res['memCached'] . " M"; //cache化內存 $mb = $res['memBuffers'] . " M"; //緩沖 $st = $res['swapTotal'] . " M"; $su = $res['swapUsed'] . " M"; $sf = $res['swapFree'] . " M"; $swapPercent = $res['swapPercent']; $memRealUsed = $res['memRealUsed'] . " M"; //真實內存使用 $memRealFree = $res['memRealFree'] . " M"; //真實內存空閑 $memRealPercent = $res['memRealPercent']; //真實內存使用比率 $memPercent = $res['memPercent']; //內存總使用率 $memCachedPercent = $res['memCachedPercent']; //cache內存使用率 } 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"; //真實內存使用 $memRealFree = round($res['memRealFree'] / 1024, 3) . " G"; //真實內存空閑 $memRealPercent = $res['memRealPercent']; //真實內存使用比率 $memPercent = $res['memPercent']; //內存總使用率 $memCachedPercent = $res['memCachedPercent']; //cache內存使用率 } $res['u_memTotal'] = $memTotal; $res['u_memTotal'] = $mt; $res['u_memUsed'] = $mu; // $res['u_memFree'] = $mf; $res['u_memCached'] = $mc; //cache化內存 $res['u_memBuffers'] = $mb; //緩沖 $res['u_swapTotal'] = $st; $res['u_swapUsed'] = $su; $res['u_swapFree'] = $sf; $res['u_swapPercent'] = $swapPercent; $res['u_memRealUsed'] = $memRealUsed; //真實內存使用 $res['u_memRealFree'] = $memRealFree; //真實內存空閑 $res['u_memRealPercent'] = $memRealPercent; //真實內存使用比率 $res['u_memPercent'] = $memPercent; //內存總使用率 $res['u_memCachedPercent'] = $memCachedPercent; //cache內存使用率 return $res['u_memRealPercent']; } ~~~ ## :-: **硬盤使用率** ~~~ /** * 硬盤使用率 */ function getDiskRate() { $fp = popen('df -lh | grep -E "^(/)"',"r"); //讀。返回的是文件指針 $rs = fread($fp,1024); //最多讀取1024字節 pclose($fp); //關閉 $rs = preg_replace("/\s{2,}/",' ',$rs); //把讀出來的空格（至少匹配2次空白符）替換成 “_” $hd = explode(" ",$rs); //拿空格分割 $hd_avail = !strrpos($hd[1],"T")?trim($hd[1],'G'):trim($hd[1],'T')*1024; //磁盤大小，/dev/sda1 $hd_avail2 = !strrpos($hd[6],"T")?trim($hd[6],'G'):trim($hd[6],'T')*1024; //磁盤大小，/dev/sda3 $hd_usage = !strrpos($hd[2],"T")?trim($hd[2],'G'):trim($hd[2],'T')*1024; //磁盤可用空間大小單位G $hd_usage2 = !strrpos($hd[7],"T")?trim($hd[7],'G'):trim($hd[7],'T')*1024; //echo $hd_avail."/".$hd_avail2."/".$hd_usage."/".$hd_usage2; $bili = ($hd_usage+$hd_usage2)/($hd_avail+$hd_avail2); $iPercent = round($bili*100,2); //取2位小數 return $iPercent; } ~~~ ## :-: **獲取網絡帶寬使用率** ~~~ /** * 獲取網絡帶寬使用率 * @return bool */ function getNetRate(){ if (false === ($prevVal = @file("/proc/net/dev"))) { return false; } $result = file_get_contents("/proc/net/dev"); exec("/sbin/ifconfig |grep eth",$res); $recive=$trancate=$speed=0; foreach($res as $v){ $data=$mbs=''; $eth =explode(' ',$v)[0]; // var_dump($eth); //echo "/sbin/ifconfig $eth |grep RUNNING"; exec("/sbin/ifconfig $eth |grep RUNNING",$data); if(!empty($data)){ //網口是開啟的 preg_match("/$eth:\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+/", $result, $preg_str); //var_dump($preg_str);die; $preg_str = str_replace("$eth: ",'',$preg_str); $preg_arr=explode(' ',$preg_str[0]); $recive += $preg_arr[0]; $trancate += $preg_arr[35]; exec("/sbin/ethtool $eth",$ms); if(strpos($ms[12],'100Mb/s')!=false){ $speed += 100; } if(strpos($ms[12],'1000Mb/s')!=false){ $speed += 1000; } } } // $rate = round($packets*$speed/$bytes,2); // var_dump($rate);die; return $rate; } ~~~ ## :-: **單位轉換** ~~~ /** * 單位轉換 * @param $size * @return int|string */ function hbw($size) { $size *= 8; if($size > 1024 * 1024 * 1024) { $size = round($size / 1073741824 * 100) / 100 . ' Gbps'; } elseif($size > 1024 * 1024) { $size = round($size / 1048576 * 100) / 100 . ' Mbps'; } elseif($size > 1024) { $size = round($size / 1024 * 100) / 100 . ' Kbps'; } else { $size = $size . ' Bbps'; } return $size; } ~~~