ng> (<em>string</em>) – GET/POST parameter name</li>
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">GET/POST value if found, NULL if not</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
</td>
</tr>
</tbody>
</table>
<p>This method works the same way as <co