PHP determines the IP client

As for how to obtain the client IP address, you don't need to talk about it in detail. but to take care of the same Cainiao as me, I 'd like to paste the code for displaying the page by the way.

As for how to obtain the client IP address, you don't need to talk about it in detail. but to take care of the same Cainiao as me, I 'd like to paste the code for displaying the page by the way:
PHP code

 

PHP code

3. Header ('content-Type: text/html; charset = utf-8 ');
4. $ Starttime = getmicrotime (); // get the page start execution time
5. Define ('wroot', dirname (_ FILE _); // define the program directory
7. Function GetIP () {// obtain the IP address
8. If ($ _ SERVER ["HTTP_X_FORWARDED_FOR"])
9. $ Ip = $ _ SERVER ["HTTP_X_FORWARDED_FOR"];
10. Else if ($ _ SERVER ["HTTP_CLIENT_IP"])
11. $ Ip = $ _ SERVER ["HTTP_CLIENT_IP"];
12. Else if ($ _ SERVER ["REMOTE_ADDR"])
13. $ Ip = $ _ SERVER ["REMOTE_ADDR"];
14. Else if (getenv ("HTTP_X_FORWARDED_FOR "))
15. $ Ip = getenv ("HTTP_X_FORWARDED_FOR ");
16. Else if (getenv ("HTTP_CLIENT_IP "))
17. $ Ip = getenv ("HTTP_CLIENT_IP ");
18. Else if (getenv ("REMOTE_ADDR "))
19. $ Ip = getenv ("REMOTE_ADDR ");
20. Else
21. $ Ip = "Unknown ";
22. Return $ ip;
23. }
26. Define ('_ QQWRY _', WROOT. "/QQWry. Dat"); // ip address library of QQ
27. Include_once WROOT. '/QQWry. class. php ';
28. $ QQWry = new QQWry;
29. $ QQWry-> QQWry (GetIP ());
30. $ Country = iconv ('gb2312', 'utf-8', $ QQWry-> Country); // note the encoding. the default address read by QQWry. DAT is GB2312.
32. /*
33. * Page jump
34. */
35. If (strstr ($ country, "Zhengzhou ")! = NULL ){
36. Echo "zhengzhou.abc.com" // jump to the corresponding city page. In this example, only the URL is printed. the skip code is omitted.
37. // Else if... judgment of more cities, code omitted
38. Echo $ country. iconv ('gb2312', 'utf-8', $ QQWry-> Local )."
    ";
39. // If the sub-station is not matched, then... Omitted
40. }
45. /*
46. * Get the current page time
47. */
48. Function getmicrotime (){
49. List ($ msec, $ sec) = explode ("", microtime ());
50. Return (float) $ sec + (float) $ msec;
51. }
52. /*
53. * Get the page execution time
54. */
55. Function getruntime ($ starttime ){
56. Return getmicrotime ()-$ starttime;
57. }
59. Printf ('Page Execution time: %. 4f second ', getruntime ($ starttime ));
60. ?>