如何准确获取网站访问者的原始IP地址？

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python// 获取访问者真实IP地址public function Getip(): if (!empty($_SERVER[HTTP_CLIENT_IP])) { $ip=$_SERVER[HTTP_CLIENT_IP]; } else { $ips=explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); foreach ($ips as $ip) { if (!empty($ip)) { return $ip; } } }

//获得访客真实ip public function Getip(){ if(!empty($_SERVER["HTTP_CLIENT_IP"])){ $ip = $_SERVER["HTTP_CLIENT_IP"]; } if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ //获取代理ip $ips = explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']); } if($ip){ $ips = array_unshift($ips,$ip); } $count = count($ips); for($i=0;$i<$count;$i++){ if(!preg_match("/^(10|172\\.16|192\\.168)\\./i",$ips[$i])){//排除局域网ip $ip = $ips[$i]; break; } } $tip = $ip ? $ip : $_SERVER['REMOTE_ADDR']; if($tip=="127.0.0.1"){ //获得本地真实IP return $this->get_onlineip(); }else{ return $tip; } } //获得本地真实IP public function get_onlineip() { $mip = file_get_contents("www.ip138.com/ip2city.asp"); if($mip) { preg_match("/\\[.*\\]/",$mip,$sip); $p = array("/\\[/","/\\]/"); return preg_replace($p,"",$sip[0]); }else { return "获取本地IP失败！"; } }