php判断访问IP的方法

本文实例讲述了php判断访问IP的方法。分享给大家供大家参考。具体如下: <?php function getIP() { if (! empty ( $_SERVER ["HTTP_CLIENT_IP"] )) { $cip = $_SERVER ["HTTP_CLIENT_IP"]; } else if (! empty ( $_SERVER ["HTTP_X_FORWARDED_FOR"] )) { $cip = $_SERVER ["HTTP_X_FORWARDED_FOR"]; } else if (! empty ( $_SERVER ["REM