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How to ban IP access (without filtering search engine spiders) in PHP

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Release： 2016-07-25 08:55:38
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  3. /**

  4. * Block access to specified IP addresses, but do not block search engine spiders
  5. * by bbs.it-home.org
  6. */
  7. function get_ip_data(){
  8. 　　$ip=file_get_contents("http://ip.taobao.com/service/getIpInfo.php?ip=".get_client_ip());
  9. 　　$ip = json_decode($ip);
  10. 　　if($ip->code){
  11. 　　return false;
  12. 　　}

  13. 　　$data = (array) $ip->data;

  14. 　　if($data['region']=='湖北省' && !isCrawler()){
  15. 　　exit('http://bbs.it-home.org');
  16. 　　}
  17. 　　}
  18. 　　function isCrawler() {
  19. 　　$spiderSite= array(
  20. 　　"TencentTraveler",
  21. 　　"Baiduspider+",
  22. 　　"BaiduGame",
  23. 　　"Googlebot",
  24. 　　"msnbot",
  25. 　　"Sosospider+",
  26. 　　"Sogou web spider",
  27. 　　"ia_archiver",
  28. 　　"Yahoo! Slurp",
  29. 　　"YoudaoBot",
  30. 　　"Yahoo Slurp",
  31. 　　"MSNBot",
  32. 　　"Sogou Spider",
  33. 　　"Speedy Spider",
  34. 　　"Google AdSense",
  35. 　　"Heritrix",
  36. 　　"Fish search",
  37. 　　);

  38. 　　if(in_array(strtolower($_SERVER['HTTP_USER_AGENT']),$spiderSite)){

  39. 　　return true;
  40. 　　}else{
  41. 　　return false;
  42. 　　}
  43. 　　}
  44. 　　//获取客户端的IP地址
  45. 　　function get_client_ip()
  46. 　　{
  47. 　　if (isset($_SERVER)){
  48. 　　if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
  49. 　　$realip = $_SERVER["HTTP_X_FORWARDED_FOR"];
  50. 　　} else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
  51. 　　$realip = $_SERVER["HTTP_CLIENT_IP"];
  52. 　　} else {
  53. 　　$realip = $_SERVER["REMOTE_ADDR"];
  54. 　　}
  55. 　　} else {
  56. 　　if (getenv("HTTP_X_FORWARDED_FOR")){
  57. 　　$realip = getenv("HTTP_X_FORWARDED_FOR");
  58. 　　} else if (getenv("HTTP_CLIENT_IP")) {
  59. 　　$realip = getenv("HTTP_CLIENT_IP");
  60. 　　} else {
  61. 　　$realip = getenv("REMOTE_ADDR");
  62. 　　}
  63. 　　}
  64. 　　return $realip;
  65. }

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PHP禁止IP访问(不过滤搜索引擎蜘蛛)的方法
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