简单的php获取linux服务器状态的代码，不多说-直接上函数：

复制代码 代码如下:
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);
  $sys_info = explode(" ",$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);
 }