如何通过PHP代码准确获取访问者的IP地址？

本文共计97个文字，预计阅读时间需要1分钟。

pythondef get_ip(): ip=None if not empty($_SERVER['HTTP_CLIENT_IP']): ip=$_SERVER['HTTP_CLIENT_IP'] elif not empty($_SERVER['HTTP_X_FORWARDED_FOR']): ip=$_SERVER['HTTP_X_FORWARDED_FOR'] elif not empty($_SERVER['REMOTE_ADDR']): ip=$_SERVER['REMOTE_ADDR'] return ip

function getIp() { if(!empty($_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } elseif (!empty($_SERVER['REMOTE_ADDR'])) { $ip = $_SERVER['REMOTE_ADDR']; } else { $ip = '127.0.0.1'; } return $ip; } function getRealIp() { $ip = flase; if(!empty($_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ips = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); if($ip) { array_unshift($ips,$ip); $ip = false; } for($i=0;$i