如何在Laravel 5+中获取客户端IP地址 [英] How to get client IP address in Laravel 5+

问题描述

我正在尝试在Laravel中获取客户端的IP地址.

I am trying to get the client's IP address in Laravel.

使用$_SERVER["REMOTE_ADDR"]可以很容易地在PHP中获得客户端的IP.在核心PHP中它可以正常工作，但是当我在Laravel中使用相同的东西时，它将返回服务器IP而不是访问者的IP.

It is easy to get a client's IP in PHP by using $_SERVER["REMOTE_ADDR"]. It is working fine in core PHP, but when I use the same thing in Laravel, it returns the server IP instead of the visitor's IP.

推荐答案

查看 Laravel API :

Request::ip();

在内部，它使用 Symfony中的getClientIps方法请求对象:

Internally, it uses the getClientIps method from the Symfony Request Object:

public function getClientIps()
{
    $clientIps = array();
    $ip = $this->server->get('REMOTE_ADDR');
    if (!$this->isFromTrustedProxy()) {
        return array($ip);
    }
    if (self::$trustedHeaders[self::HEADER_FORWARDED] && $this->headers->has(self::$trustedHeaders[self::HEADER_FORWARDED])) {
        $forwardedHeader = $this->headers->get(self::$trustedHeaders[self::HEADER_FORWARDED]);
        preg_match_all('{(for)=("?\[?)([a-z0-9\.:_\-/]*)}', $forwardedHeader, $matches);
        $clientIps = $matches[3];
    } elseif (self::$trustedHeaders[self::HEADER_CLIENT_IP] && $this->headers->has(self::$trustedHeaders[self::HEADER_CLIENT_IP])) {
        $clientIps = array_map('trim', explode(',', $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_IP])));
    }
    $clientIps[] = $ip; // Complete the IP chain with the IP the request actually came from
    $ip = $clientIps[0]; // Fallback to this when the client IP falls into the range of trusted proxies
    foreach ($clientIps as $key => $clientIp) {
        // Remove port (unfortunately, it does happen)
        if (preg_match('{((?:\d+\.){3}\d+)\:\d+}', $clientIp, $match)) {
            $clientIps[$key] = $clientIp = $match[1];
        }
        if (IpUtils::checkIp($clientIp, self::$trustedProxies)) {
            unset($clientIps[$key]);
        }
    }
    // Now the IP chain contains only untrusted proxies and the client IP
    return $clientIps ? array_reverse($clientIps) : array($ip);
} 

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