PHP 获取ip地址代码汇总

代码一： function getip() { static $ip = ''; $ip = $_SERVER['REMOTE_ADDR']; if(isset($_SERVER['HTTP_CDN_SRC_IP'])) { $ip = $_SERVER['HTTP_CDN_SRC_IP']; } elseif (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SER