本文实例讲述了php限制ip地址范围的方法。分享给大家供大家参考。具体如下: 只有在限定范围内的ip地址才能访问 function get_real_ipaddress() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) { return $_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { return $_SERVER['HTTP_X_FORWARDED_FOR']; } return $_SERVER['REMOTE_ADDR