title: How do you post an array field with Guzzle?
body: <p>How do you post an array field with Guzzle? I have tried the following but nothing is received in the <code>fruits</code> variable.</p>
  
  <pre><code>$fruits = ['apple', 'orange', 'banana'];
  $client   = new \GuzzleHttp\Client();
  $response = $client-&gt;post('http://example/post', [ 
     'form_params' =&gt; [ 'fruits' =&gt; $fruits ] 
  ] );
  </code></pre>