PHP How to get value using the Class - php

Question

I have made a form with a description and inside that description there's a list called "services-list" and I need to get the value with the class "services-list"
here is the code on how I get the whole description section
<p class="card"><?php echo substr(strip_tags($row->description), 0, 200); ?>...</p>
description came from a form for="description", and saved to the database.
in that code there is a section which has class "services-list" and listed all the services, how can I call that specific section to print?
I am referring to code something like this
<?php echo substr(strip_tags($row->description .'.services-list'), 0, 200); ?>
but not sure with this code.

Answer 1

Assuming you have a $row->description object contains this text :
$row = (object) [ 'description' => '
<div>
<li class="other-class">Service A</li>
<li class="services-list">Service B</li>
<li class="services-list">Service C</li>
<li class="services-list">Service D</li>
</div>
'];
You could use DOMDocument to get all of the services-list class element by :
$doc = new DOMDocument();
$doc->loadHTML($row->description);
$xpath = new DomXPath($doc);
$nodeList = $xpath->query("//li[#class='services-list']");
$node = $nodeList->item(1);
$service_list = [];
foreach ($nodeList as $i => $val){
if (!empty($val->nodeValue)) {
array_push($service_list, $val->nodeValue);
}
}
$service_list = implode($service_list, ', '); // separate each item by comma
// To check the result:
echo "<p>" . $service_list . "</p>";
The output will be :
<p>Service B, Service C, Service D</p>