33 lines
793 B
PHP
33 lines
793 B
PHP
<?php
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declare(strict_types=1);
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namespace App\Utils;
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use Psr\Http\Message\ServerRequestInterface;
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class RequestHelper
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{
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/**
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* 获取客户端真实 IP
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*
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* 优先级：X-Forwarded-For → X-Real-IP → ServerParams remote_addr
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*/
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public static function getClientIp(ServerRequestInterface $request): ?string
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{
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$forwarded_for = $request->getHeaderLine('X-Forwarded-For');
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if ($forwarded_for !== '') {
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$ips = explode(',', $forwarded_for);
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return trim($ips[0]);
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}
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$real_ip = $request->getHeaderLine('X-Real-IP');
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if ($real_ip !== '') {
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return trim($real_ip);
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}
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$server_params = $request->getServerParams();
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return $server_params['remote_addr'] ?? null;
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}
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}
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