HTMLPurifier Table

<?php

require_once '/htmlpurifier-4.9.2/library/HTMLPurifier.auto.php';
// require_once '/htmlpurifier-4.8.0/library/HTMLPurifier.auto.php';

$html = '<table class="product-description-table">
<tbody>
<tr>
<td class="item" colspan="3">Test Title</td>
</tr>
<p class="MsoNormal c2"><strong>Test Paragraph 3</strong></p>
<p class="MsoNormal c2"><strong>Test Paragraph 2</strong></p>
<p class="MsoNormal c2"><strong>Test Paragraph 3</strong></p>
<p class="c5"></p>
<p class="MsoNormal c2"><strong>&nbsp;</strong></p>
<strong class="c6"><strong><em><br></em></strong></strong>
<p class="c2"></p>
<p class="c4"></p>
</td>
<td class="product-content-border"></td>
</tr>
<tr>
<td class="gallery" colspan="3">
<table>
<tbody>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>';

$config = HTMLPurifier_Config::createDefault();
$config->set('AutoFormat.RemoveEmpty', true);
$config->set('AutoFormat.RemoveSpansWithoutAttributes', true);
$config->set( 'AutoFormat.RemoveEmpty.RemoveNbsp', true );
$purifier = new HTMLPurifier($config);
$clean_html = $purifier->purify($html);

echo $clean_html;