How to remove a child element with simple dom html

Question

I would like to remove th 4 in this html with Child selector of PHP Simple HTML DOM without id/class

<tr>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
  <th>some text</th>
</tr>

Answer 1

Taking $tr as the row you're using, you can select the child with the following:

$fourthTh = $tr->children(4)

You can then remove the child using DOMNode::removeChild() on the parent element:

$tr->removeChild($fourthTh)