[PHP] PHP获取客户端IP地址函数(兼容多种情况) →→→→→进入此内容的聊天室

来自 , 2020-01-04, 写在 PHP, 查看 154 次.
URL http://www.code666.cn/view/64c31821
  1. function get_client_ip() {
  2.         if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
  3.         $ip = getenv("HTTP_CLIENT_IP");
  4.         else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
  5.         $ip = getenv("HTTP_X_FORWARDED_FOR");
  6.         else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
  7.         $ip = getenv("REMOTE_ADDR");
  8.         else if (isset($_SERVER ['REMOTE_ADDR']) && $_SERVER ['REMOTE_ADDR'] && strcasecmp($_SERVER ['REMOTE_ADDR'], "unknown"))
  9.         $ip = $_SERVER ['REMOTE_ADDR'];
  10.         else
  11.         $ip = "unknown";
  12.         return ($ip);
  13. }

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