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PHP获取用户的真实IP地址，非代理IP
function getClientIP(){ ?????global $ip; ?????if(getenv("HTTP_CLIENT_IP")){ ???????$ip = getenv("HTTP_CLIENT_IP"); ?????}else if(getenv("HTTP_X_FORWARDED_FOR")){ ???????$ip = getenv("HTTP_X_FORWARDED_FOR"); ?????}else if(getenv("REMOTE_ADDR")){ ???????$ip = getenv("REMOTE_ADDR"); ?????}else{ ???????$ip = "NULL"; ?????} ???return $ip; ?}本文出至：新太潮流网络博客
PHP获取用户的真实IP地址
原文地址：http://www.cnblogs.com/disoq/p/7509126.html