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!

Layke · Accepted Answer · 2015-05-21 13:47:01Z

24

Code Example:

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

answered May 21, 2015 at 13:47

Layke

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3 Comments

marcini Over a year ago

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().

IanB Over a year ago

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

nggit Over a year ago

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)

Erik Pöhler · Accepted Answer · 2014-04-24 16:02:59Z

0

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.

answered Apr 24, 2014 at 16:02

Erik Pöhler

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