hyperf2.1框架中获取客户端ip地址的方法

/**
 * 获取客户端ip地址
 * @return ip
 */
public function ip(){
    $res = $this->request->getServerParams();
    if(isset($res['http_client_ip'])){
        return $res['http_client_ip'];
    }elseif(isset($res['http_x_real_ip'])){
        return $res['http_x_real_ip'];
    }elseif(isset($res['http_x_forwarded_for'])){
        //部分CDN会获取多层代理IP，所以转成数组取第一个值
        $arr = explode(',',$res['http_x_forwarded_for']);
        return $arr[0];
    }else{
        return $res['remote_addr'];
    }
}

//获取真实ip #有时候根据代理环境，上面的函数获取不到就用这个
function reaip(){
    $headers = $this->request->getHeaders();

    if(isset($headers['x-forwarded-for'][0]) && !empty($headers['x-forwarded-for'][0])) {
        return $headers['x-forwarded-for'][0];
    } elseif (isset($headers['x-real-ip'][0]) && !empty($headers['x-real-ip'][0])) {
        return $headers['x-real-ip'][0];
    }

    $serverParams = $this->request->getServerParams();

    return $serverParams['remote_addr'] ?? '';
}