PRISM ist wohl eines der besten Syntax-Highlighting-Tools und lässt sich leicht in WordPress integrieren:
functions.php
function my_theme_resources()
{
// Prism laden | http://prismjs.com
wp_enqueue_style('prism-css', get_stylesheet_directory().'/libs/prism/prism.css');
wp_enqueue_script('prism-js', get_stylesheet_directory().'/libs/prism/prism.js');
}
add_action('wp_enqueue_scripts', 'my_theme_resources');
WordPress-Texteditor
<pre><code class="language-php">
// PHP-Beispiel-Code
$prism=true;</code></pre>