Basic Features:

• Highlighting (not all included) available for  ActionScript, Bash/Shell, C#, C++, CSS, Delphi, Diff, Groovy, Javascript, Java, JavaFX, Perl, PHP, Plain Text, Powershell, Python, Ruby, Scala, SQL, Visual Basic, XML  (please see note about XML)
• Print Highlighted Code
• Plain Text View
• Copy to Clipboard
• Focus attention on specific lines
• much more...

Requirements:

 Nuke Wysiwyg from NukeSeo.com (registration required)

Original Authors:

http://psykoptic.com/ (FCKEditor Plugin for SyntaxHighlighter)

http://alexgorbatchev.com/ (Author of SyntaxHighlighter)

Demo:

<?php

'single-quoted string';

"double-quoted string";

// single-quoted string with literal dollar sign
'fruit smoothie: $5.50';

// double-quoted string containing a variable
"fruit smoothie: $cost";

// numerical value
$cost = 5.50;

// a few common function calls
empty($variable);
isset($variable);
strlen($variable);
strrev($variable);

// a call to a custom function
is_ready_to_order($customer);

?>