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prism.js

prism.js isn't colorizing PHP

I am trying to use prism.js to highlight some PHP code examples, but it's not working. Code:

<pre class="language-php">
<code class="language-php">
$var = abs(-4.2);
var_dump($var);
// float(4.2)
</code>
</pre>

How it looks in browser:

enter image description here

The prism css and js files are linked to the page. How do I get this PHP code colorized?

Solution

  • Prism.js can highlight the syntax of about 100 languages. To keep the JavaScript and CSS files as small as possible, you specify which language(s) you want/opt in on it's web site (https://prismjs.com/download.html) and build your custom files. I did not add PHP (it has JavaScript by default) initially, and when I re-made my prism files with PHP, it worked.