php获取linux服务器状态的代码

例子，php获取linux服务器状态的代码。

3. function get_used_status(){

4. $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
5. $rs = "";
6. while(!feof($fp)){
7. $rs .= fread($fp,1024);
8. }
9. pclose($fp);
10. $sys_info = explode("\n",$rs);
11. $tast_info = explode(",",$sys_info[3]);//进程 数组
12. $cpu_info = explode(",",$sys_info[4]); //CPU占有量 数组
13. $mem_info = explode(",",$sys_info[5]); //内存占有量 数组
14. //正在运行的进程数
15. $tast_running = trim(trim($tast_info[1],'running'));
16. //CPU占有量
17. $cpu_usage = trim(trim($cpu_info[0],'Cpu(s): '),'%us'); //百分比

18. //内存占有量

19. $mem_total = trim(trim($mem_info[0],'Mem: '),'k total');
20. $mem_used = trim($mem_info[1],'k used');
21. $mem_usage = round(100*intval($mem_used)/intval($mem_total),2); //百分比
23. /*硬盘使用率 begin*/
24. $fp = popen('df -lh | grep -E "^(/)"',"r");
25. $rs = fread($fp,1024);
26. pclose($fp);
27. $rs = preg_replace("/\s{2,}/",' ',$rs); //把多个空格换成 “_”
28. $hd = explode(" ",$rs);
29. $hd_avail = trim($hd[3],'G'); //磁盘可用空间大小 单位G
30. $hd_usage = trim($hd[4],'%'); //挂载点 百分比
31. //print_r($hd);
32. /*硬盘使用率 end*/

33. //检测时间

34. $fp = popen("date +\"%Y-%m-%d %H:%M\"","r");
35. $rs = fread($fp,1024);
36. pclose($fp);
37. $detection_time = trim($rs);

38. /*获取IP地址 begin*/

39. /*
40. $fp = popen('ifconfig eth0 | grep -E "(inet addr)"','r');
41. $rs = fread($fp,1024);
42. pclose($fp);
43. $rs = preg_replace("/\s{2,}/",' ',trim($rs)); //把多个空格换成 “_”
44. $rs = explode(" ",$rs);
45. $ip = trim($rs[1],'addr:');
46. */
47. /*获取IP地址 end*/
48. /*
49. $file_name = "/tmp/data.txt"; // 绝对路径: homedata.dat
50. $file_pointer = fopen($file_name, "a+"); // "w"是一种模式，详见后面
51. fwrite($file_pointer,$ip); // 先把文件剪切为0字节大小， 然后写入
52. fclose($file_pointer); // 结束
53. */

54. 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);

55. }

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