How do I toggle css elements using simple dom parser? - php

Question

I'm trying to scrape product descriptions on a div based on its id. If the description is too long it shows a "show more". The div id's are short-description and long description.
My code works great on short-description but invisible to the DOM parser for long-description. How can I toggle the show more and then call the long-description ?
function my_function($str){
$url = $str;
// break apart ugly affiliate URL
list($chuck, $keep) = explode('=', $url);
// call simple DOM library
require_once 'libs/simple_html_dom.php';
// clean up unencoded URL
$keep = preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($keep));
// Get HTML from clean URL
$html = file_get_html($keep);
//find div element
foreach($html->find('*/div[id="short-description"]') as $element){
echo $element;
}
}
Content I'm trying to get.
<div id='short-description'>
Eos inciderint interpretaris ea. Eam ut legere aperiri qualisque.
In propriae perfecto gubergren vix. Omnesque perpetua id duo,
no mel habeo appetere persecuti. Dico phaedrum qui ad, discere euripidis
delicatissimi vim cu.....
<a class='more'>Show More</a>
</div>
<div id='long-description' style='display: none;'>
Eos inciderint interpretaris ea. Eam ut legere aperiri
qualisque. In propriae perfecto gubergren vix. Omnesque
perpetua id duo, no mel habeo appetere persecuti. Dico phaedrum
qui ad, discere euripidis delicatissimi vim cu.Eos inciderint
interpretaris ea. Eam ut legere aperiri qualisque.
<a class='less'>Show Less</a>
</div>
</div>
Update: Solved
Code was working the entire time, didn't realize the raw output had the tags attached. It was including
style='display: none;
so I couldn't see my output result. I added
echo strip_tags($element);
and then I could see the output.