php获取linux服务器CPU、内存、硬盘使用率的实现代码

时间：2022-01-11 01:33:03
define("MONITORED_IP", "172.16.0.191"); //被监控的服务器IP地址 也就是本机地址

define("DB_SERVER", "172.16.7.2"); //存放数据的服务器IP地址

define("DB_USER", "root");

define("DB_PWD","111111");

define("DB_NMAE","performance");

class MyConnect{

    public function connect($db_server,$db_user,$db_pwd,$db_name)

    {

        $conn = mysql_connect($db_server,$db_user,$db_pwd);

        if (!$conn){

            die('连接数据库失败: ' . mysql_error());

        }

        $flag = mysql_select_db($db_name,$conn);

        if(!$flag){

            echo "数据库连接出错!";

            exit();

        }else{

            mysql_query("SET NAMES UTF8");

        }

    }

}

?>

2、获取服务器性能数据的文件 get_used_status.php

/**

* 获取服务器性能CPU、内存、硬盘等使用率

* Edit bbs.it-home.org

*/

/*连接数据 begin*/

include("conn.php");

$obj_MyConnect = new MyConnect();

$obj_MyConnect -> connect(DB_SERVER,DB_USER,DB_PWD,DB_NMAE);

/*连接数据 end*/

function get_used_status(){

$fp = popen('top -b -n 2 | grep -E "^(Cpu|Mem|Tasks)"',"r");//获取某一时刻系统cpu和内存使用情况

$rs = "";

while(!feof($fp)){

$rs .= fread($fp,1024);

}

pclose($fp);

$sys_info = explode("\n",$rs);

$tast_info = explode(",",$sys_info[3]);//进程 数组

$cpu_info = explode(",",$sys_info[4]); //CPU占有量 数组

$mem_info = explode(",",$sys_info[5]); //内存占有量 数组

//正在运行的进程数

$tast_running = trim(trim($tast_info[1],'running'));

//CPU占有量

$cpu_usage = trim(trim($cpu_info[0],'Cpu(s): '),'%us'); //百分比

//内存占有量

$mem_total = trim(trim($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

/*硬盘使用率 begin*/

$fp = popen('df -lh | grep -E "^(/)"',"r");

$rs = fread($fp,1024);

pclose($fp);

$rs = preg_replace("/\s{2,}/",' ',$rs); //把多个空格换成 “_”

$hd = explode(" ",$rs);

$hd_avail = trim($hd[3],'G'); //磁盘可用空间大小 单位G

$hd_usage = trim($hd[4],'%'); //挂载点 百分比

//print_r($hd);

/*硬盘使用率 end*/

//检测时间

$fp = popen("date +\"%Y-%m-%d %H:%M\"","r");

$rs = fread($fp,1024);

pclose($fp);

$detection_time = trim($rs);

/*获取IP地址 begin*/

/*

$fp = popen('ifconfig eth0 | grep -E "(inet addr)"','r');

$rs = fread($fp,1024);

pclose($fp);

$rs = preg_replace("/\s{2,}/",' ',trim($rs)); //把多个空格换成 “_”

$rs = explode(" ",$rs);

$ip = trim($rs[1],'addr:');

*/

/*获取IP地址 end*/

/*

$file_name = "/tmp/data.txt"; // 绝对路径: homedata.dat

$file_pointer = fopen($file_name, "a+"); // "w"是一种模式，详见后面

fwrite($file_pointer,$ip); // 先把文件剪切为0字节大小， 然后写入

fclose($file_pointer); // 结束

*/

return array('cpu_usage'=>$cpu_usage,'mem_usage'=>$mem_usage,'hd_avail'=>$hd_avail,'hd_usage'=>$hd_usage,'tast_running'=>$tast_running,'detection_time'=>$detection_time);

}

//echo date("Y-m-d H:i:s",time())."

";

$status=get_used_status();

$sql = "insert into performance(ip,cpu_usage,mem_usage,hd_avail,hd_usage,tast_running,detection_time) ";

$sql .= " value('".MONITORED_IP."','".$status['cpu_usage']."','".$status['mem_usage']."','".$status['hd_avail']."','".$status['hd_usage']."','".$status['tast_running']."','".$status['detection_time']."')";

$query = mysql_query($sql) or die("SQL 语句执行失败!");

unset($status);

//echo date("Y-m-d H:i:s",time())."

";

?>

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