title: how can I set content of request symfony?
body: <p>I generate manually request content of my form and want to set data like:</p>
  
  <pre><code>form[1][]=2&amp;form[2][]=3&amp;form[3][]=5&amp;form[4][]=8&amp;form[apply]=
  </code></pre>
  
  <p>The Symfony <a href="https://github.com/symfony/HttpFoundation/blob/master/Request.php" rel="noreferrer">Request</a> object has an <code>getContent()</code> method, but hasn't <code>setContent()</code>. </p>
  
  <p>How can I set content alternatively?</p>