这种一款可以统计你网站当前在线人数的代码,由php+txt实现的无需数据来来支持,PHP+txt实例代码如下:

1. <?php
2. $time = gettimeofday(void);
3. //文件初始化 start
4. if(@filesize("time.text")<=0){
5. $fd_time = fopen("time.text","w+");
6. fputs($fd_time,$time[sec]);
7. fclose($fd_time);
8. $fd_time = fopen("ip.text","w+");
9. fclose($fd_time);
10. }
11. //文件初始化 over
12. //更新时间 start
13. $tamp = file("time.text");
14. $equal = ($time[sec] - $tamp[0]);
15. if($equal > 60){
16. $fd_time = fopen("time.text","w+");
17. fputs($fd_time,"");
18. fclose($fd_time);
19. }
20. //更新时间 over
21. //检查ip start
22. $fd_ip = fopen("ip.text","a+");
23. //获取用户ip地址
24. if ($http_server_vars["http_x_forwarded_for"])
25. {
26. $ip = $http_server_vars["http_x_forwarded_for"];
27. }
28. elseif ($http_server_vars["http_client_ip"])
29. {
30. $ip = $http_server_vars["http_client_ip"];
31. }
32. elseif ($http_server_vars["remote_addr"])
33. {
34. $ip = $http_server_vars["remote_addr"];
35. }
36. elseif (getenv("http_x_forwarded_for"))
37. {
38. $ip = getenv("http_x_forwarded_for");
39. }
40. elseif (getenv("http_client_ip"))
41. {
42. $ip = getenv("http_client_ip");
43. }
44. elseif (getenv("remote_addr"))
45. {
46. $ip = getenv("remote_addr");
47. }
48. else
49. {
50. $ip = "unknown";
51. }
52. $ip_adds = file("ip.text");
53. for($i;$i<count($ip_adds);$i++){
54. if($ip." "==$ip_adds[$i]){
55. $ip_check = 1;
56. break;
57. }
58. }
59. if($ip_check!=1){
60. fputs($fd_ip,$ip." ");
61. }
62. fclose($fd_ip);
63. //检查ip over
64. $ip_adds = count(file("ip.text"));
65. ?>

调用方法:

1. <?php
2. /*
3. * 标题：简单在线人数统计
4. *
5. * 作者：邓东东
6. *开源代码phpfensi.com
7. **/
8. ?>
9. <?php
10. include("online.php");
11. $fd_ip = file("ip.text");
12. ?>
13. <title>在线人数</title>
14. <center><font color=blue size=6>php100论坛在线总人数为:<font color=red size=8><?=$ip_adds?>08610071</font>人<br>
15. 用户ip：<?
16. echo "<select>";
17. for($i = 0;$i < count($ip_adds);$i++){
18. echo"<option value = '$i'>".substr($fd_ip[$i],0,0-strlen(strrchr($fd_ip[$i],'.'))).".*</option> ";
19. }
20. echo "</select>";
21. ?></font></center>