php获取真实ip地址原理及实现代码
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灯火互联
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 | <?php function get_real_ip(){ if(getenv("HTTP_CLIENT_IP") ;; strcasecmp(getenv("HTTP_CLIENT_IP"), "unknow")){ $ip = getenv("HTTP_CLIENT_IP"); }else if(getenv("HTTP_X_FORWARDED_FOR") ;; strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknow")){ $ip = getenv("HTTP_X_FORWARDED_FOR"); }else if(getenv("REMOTE_ADDR") ;; strcasecmp(getenv("REMOTE_ADDR"), "unknow")){ $ip = getenv("REMOTE_ADDR"); }else if(isset($_SERVER["REMOTE_ADDR"]) ;; $_SERVER["REMOTE_ADDR"] ;; strcasecmp($_SERVER["REMOTE_ADDR"],"unknow")){ $ip = $_SERVER["REMOTE_ADDR"]; }else{ $ip = "unknow"; } return $ip; } echo get_real_ip(); ?> | |
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