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例子，php获取linux服务器状态的代码。
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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
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- /*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); - }
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