Supplier

 https://www.andrehotzler.de/en/projects/prism-prismjs-com-syntaxhighlighter-for-joomla.html

Description

This plugin is based on  https://prismjs.com/ a syntaxhighlighter encoded in javascript

Syntax

<pre class="php-language" > $variable = "This is a test message!";</pre>

The result

$variable = "This is a test message!";