PHP DOMNode insertAfter?

Question

I am a bit stuck on how to reorder nodes. I am trying to add two simple "move item up" and "move item down" functions. While insertBefore() does what I want to move a sibling before the preceding one, what is the easiest way to move one node down in the DOM? Much appreciated!

Hanley

Answer 1

Code Example:

 try {
        $li->parentNode->insertBefore( $ul, $li->nextSibling);
 } catch(\Exception $e){
        $li->parentNode->appendChild( $ul );
 }

Down

Actually, you can do only: $li->parentNode->insertBefore( $ul, $li->nextSibling); The try..catch block is unnecessary, because if $li->nextSibling is null, insertBefore() will act just like appendChild(). – Urano

What if nextSibling is null (i.e. $li is the last in the series)? – Pastiness

If nextSibling is null, it means DOMNode::insertBefore with second parameter omitted. Without second parameter (refnode), newnode is appended to the children. php.net/manual/en/domnode.insertbefore.php (Tested and works as the #1 comment & manual said) – Mobility

Answer 2

Okay, stupid me. The easy solution is to just go down in the DOM to the nextSibling of the nextSibling and do the same insertBefore... so this is solved.

Hanley