title: PHP Curl proxy option in Laravel Http Facade
body: <p>I am using Laravel's Http facade to make requests such as</p>
  <pre><code>Http::withHeaders(['user-agent' =&gt; 'My User agent'])-&gt;retry(3, 500)-&gt;get('https://example.com')-&gt;body();
  </code></pre>
  <p>And need to use proxy, which as per proxy provider's example should be set like this in case of PHP's curl</p>
  <pre><code>curl_setopt($curl, CURLOPT_PROXY, 'aaa');
  curl_setopt($curl, CURLOPT_PROXYUSERPWD, 'xxx:xxx');
  </code></pre>
  <p>Can these proxy options be somehow set with Laravel's Http class above?</p>