php获取ip地址方法
很多地方需要用到用户ip，和限制用户ip,以下方法可以得到访问者的ip地址
<?php function get_ip(){ if (@$_SERVER['HTTP_CLIENT_IP'] && $_SERVER['HTTP_CLIENT_IP']!='unknown') { $ip = $_SERVER['HTTP_CLIENT_IP']; } elseif (@$_SERVER['HTTP_X_FORWARDED_FOR'] && $_SERVER['HTTP_X_FORWARDED_FOR']!='unknown') { $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } else { $ip = $_SERVER['REMOTE_ADDR']; } return $ip; } //调用$ip=get_ip(); //显示print_r($ip); ?>
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