PHP XML inserting element after (or before) another element

Question

I have a previously generated XML like this:

Answer 1

Try

$section = $dom->documentElement->insertBefore(
    $dom->createElement('section'), 
    $shop)
);

where $shop points to the <shop> element.

Answer 2

Fetch the <shop> node and use

• DOMNode::insertBefore — Adds a new child before a reference node

instead of appending to the documentElement.

You can do that from the DOMDocument as well when passing in the shop node as second argument. Personally, I find it easier to just do that from the shop node because you have to fetch it anyway:

$shopNode->insertBefore($newNode);

Answer 3

You might try this; I didn't test it, but the solution comes from using insertBefore instead of appendChild.

$shop = $dom->getElementsByTagName("shop")->item(0);
$section = $dom->documentElement->insertBefore($dom->createElement('section'),$shop);