title: Only variables should be assigned by reference with function
body: <p>I use old version of Codeigniter framework. With new version of php I am gettings this error:
  <code>Only variables should be assigned by reference</code></p>
  
  <p>I am wondering if this is safe bugfix:
  Changing:</p>
  
  <pre><code> $this-&gt;_base_classes =&amp; is_loaded();
  </code></pre>
  
  <p>to</p>
  
  <pre><code>$assign = is_loaded();    
  $this-&gt;_base_classes =&amp; $assign;
  </code></pre>
  
  <p>Is that the same?</p>