1. <?php

3. echo getenv('HTTP_CLIENT_IP');

5. echo getenv('HTTP_X_FORWARDED_FOR');

7. echo getenv('REMOTE_ADDR');

9. ?>

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1. <?php

3. $ch = curl_init();

5. curl_setopt($ch, CURLOPT_URL, "http://localhost/2.php");

7. curl_setopt($ch, CURLOPT_HTTPHEADER, 

8.       array('X-FORWARDED-FOR:8.8.8.8', 'CLIENT-IP:8.8.8.8')); //构造

10. IPcurl_setopt($ch, CURLOPT_REFERER, "http://bbs.it-home.org/ "); //构造来路

12. curl_setopt($ch, CURLOPT_HEADER, 1);

14. $out = curl_exec($ch);curl_close($ch);

16. ?>

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1. <?php

3. function getClientIp() {

5. if (!empty($_SERVER["HTTP_CLIENT_IP"]))

7. $ip = $_SERVER["HTTP_CLIENT_IP"];

9. else if (!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))

11. $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];

13. else if (!empty($_SERVER["REMOTE_ADDR"]))

15. $ip = $_SERVER["REMOTE_ADDR"];

17. else$ip = "err";

19. return $ip;

21. }

23. echo "IP: " . getClientIp() . "";

25. echo "referer: " . $_SERVER["HTTP_REFERER"];

27. ?>

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