PHP 获取真实IP地址的功能。

Posted 2021-05-14

function get_ip(){
  if(!empty($_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } // Check if the IP is from a shared internet connection
  else if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } // Check if the IP is passed from a proxy
  else{ $ip = $_SERVER['REMOTE_ADDR']; } // The real IP address
  return $ip;
}