SyntaxHighlighter is a load of code created to add a splash of color to code, using Javascript. It was created by Alex Gorbachev, but various authors have implemented his work into their projects, one being SyntaxHighlighter Evolved, which is a WordPress plugin that I use right here on my blog.

Wordpress default:

<?php
while ($var == 'string') {
    include('filename.php');
    print 12345;
}
?>

With a syntax highlighter:

<?php
while ($var == 'string') {
    include('filename.php');
    print 12345;
}
?>

This makes it much more simple to distinguish between constants, functions, language constructs, delimiters, etc., and makes the code less boring to read. However, by default, SyntaxHighlighter only comes with about 500 functions built in, and a few errors when defining keywords. So, what did I do? I took the brush (the file with all of the functions/keywords/etc.), and added the rest of the 5,500+ PHP functions. It took a while, but the finished product is worth it. If you’re using any software based on SyntaxHighlighter, you can use my new and improved brush, which features many additions when it comes to constants, classes, functions, keywords, and language constructs.

» Read more: Improved SyntaxHighlighter PHP Brush