PHP -- Closing end DIV tag - php

Question

I need to figure the closing tag for below code
<div class="emph"><div class="level"> Some testing </div></div>
In this i need to find the correct tag for parent DIV. my goal is to add the class name before the closing DIV like below
<div class="emph"><div class="level"> Some testing <!--level--></div><!--emph--></div>
For that i need to find the exact closing Parent DIV.
is that possible to achieve in PHP?

Answer 1

You can use simpleXML (or any other XML class) - for each div element, read it's class and append at the end of node content. It's not exactly finding the closing tag, but achieves your specified goal.
Sample code:
$dom = new DOMDocument;
$dom->loadXML($xml);
$divs = $dom->getElementsByTagName('div');
foreach ($divs as $div) {
if ($div->getAttribute('class')!='') {
$div->nodeValue = $div->nodeValue.'<!--'.$div->getAttribute('class').'-->';
}
}
echo $dom->saveXML();

Answer 2

While printing the divs in PHP keep an array $div_array = array()
As soon as you open a div do:
array_push($div_array, 'emph'); // or 'level' depending on the classname
As soon as you're ready to print the closing tag, ask for the value of the last div by:
array_pop($div_array);
// for example
echo '<!-- '.array_pop($div_array).' -->';
Popping the array also deletes the last entry of the array. Which is what you want I presume.