title: How to use IS NOT NULL in Associative Array
body: <p>I am new in Symfony framework And I want to use Query basis on Condition</p>
  
  <p>which is using associative array and I want to use IS NOT NULL But it is not </p>
  
  <p>working.</p>
  
  <pre><code>$repository = $this-&gt;getDoctrine()-&gt;getRepository('AppBundle:Order');
  $order = $repository-&gt;findBy(array('status' =&gt; $last_status,'new_coloumn_id'=&gt;"IS NOT NULL"));
  </code></pre>
  
  <p>How to use <strong>IS NOT NULL</strong> in array.</p>