php获取登陆者IP

function login_ip() {
         if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
             $ip = getenv('HTTP_CLIENT_IP');
         } elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
             $ip = getenv('HTTP_X_FORWARDED_FOR');
         } elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
             $ip = getenv('REMOTE_ADDR');
         } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
             $ip = $_SERVER['REMOTE_ADDR'];
         }
         return preg_match ( '/[\d\.]{7,15}/', $ip, $matches ) ? $matches [0] : '';
    }

赏 支付宝打赏 微信打赏

如果文章或资源对您有帮助，欢迎打赏作者。一路走来，感谢有您！