SyntaxHighlighter is a Formatter that displays code attractively with syntax highlighting in pre-formatted (monospace) blocks. Each code block is accompanied by "view plain", "copy to clipboard", and "print" links.

Surrounding code like so:

[code lang="php"]
<?php
function helloWorld($world) {
    print $world;
}
?>
[/code]

Will post a syntax-highlighted PHP block. Other options are as follows:

Language	"lang" Value
C++	cpp, c, c++
C#	c#, c-sharp, csharp
CSS	css
Delphi	delphi, pascal
Java	java
JavaScript	js, jscript, javascript
PHP	php
Python	py, python
Ruby	rb, ruby, rails, ror
Sql	sql
VB	vb, vb.net
XML/HTML	xml, html, xhtml, xslt

View the readme.html page (included) for detailed information.

Uploaded version 1.0 of SyntaxHighlighter.

Uploaded version 1.0 of SyntaxHighlighter.

Uploaded version 1.1 of SyntaxHighlighter.

c++, c# doesn't seem to work. but csharp does for the lang attr.

default.php line 63 replace with:
$hlString = preg_replace("/\[code( lang=\"([A-Za-z\+#]+)\")?\]/",

from
$hlString = preg_replace("/\[code( lang=\"([A-Za-z]+)\")?\]/",

I added + and # to the mix

Bug fixed!