Removing the last column of an HTML table - using preg_replace - php

Question

in a simple HTML table I would like to remove the last column
<table>
<tbody>
<tr>
<th>1</th>
<th>2</th>
<th>3</th>
<th rowspan="3">I want to remove this</th>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td rowspan="3">I want to remove this</td>
</tr>
I am using this code, but I am still left with the content and the th and td rowspan
$myTable = preg_replace('#</?td rowspan[^>]*>#i', '', $myTable);
echo $myTable
Question: how do I remove the last column and it's content ?

Answer 1

<?php
// Create a new DOMDocument and load the HTML
$dom = new DOMDocument('1.0');
$dom->loadHTML($html);
// Create a new XPath query
$xpath = new DOMXPath($dom);
// Find all elements with a rowspan attribute
$result = $xpath->query('//*[#rowspan]');
// Loop the results and remove them from the DOM
foreach ($result as $cell) {
$cell->parentNode->removeChild($cell);
}
// Save back to a string
$newhtml = $dom->saveHTML();
See it working

Answer 2

I guess this will do it
preg_replace("/<(?:td|th)[^>]*>.*?<\/(?:td|th)>\s+<\/tr>/i", "</tr>", $myTable);
assuming you have closing tr tag (</tr>) at the end of each row unlike in your example
Edit: this will remove any <td> or <th> elements before closing </tr> no matter if they have any attributes
working example