代码
/**
* 获取用户ip地址
*/
function getIp() {
$ip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '';
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$list = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
$ip = $list[0];
}
if (!ip2long($ip)) {
$ip = '';
}
return $ip;
}