am2 = null], [
$param3 = null])</code>
    </td></tr></table>
    </td></tr></table><br />
	
		<br /><br />
<h4>Tags:</h4>
<div class="tags">
<table border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><b>access:</b>&nbsp;&nbsp;</td><td>public</td>
  </tr>
</table>
</div>
<br /><br />

	<p>Overridden in child classes as:<br />
		<dl>
	<dt><a href="../phpQuery/CallbackReference.html#method__construct">CallbackReference::__construct()</a></dt>
		<dd></dd>
	</dl>
	</p>
	
        <h4>Parameters:</h4>
    