php获取linux服务器CPU、内存、硬盘使用率的实现代码

php中文网

发布时间：2016-07-25 08:59:31

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来源于php中文网

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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");
}
}
}
?>

复制代码

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

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$tast_running = trim(trim($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())."
";
?>