Possible Reasons For Use

Live Examples:

plain: http://textsnip.com/2d1585

custom: http://textsnip.com/leet/my_strpos

html:  http://textsnip.com/7f6e0a/html

user:  http://textsnip.com/user/richard

c#      http://textsnip.com/4dfb93/csharp

css:    http://textsnip.com/62e828/css

xml:   http://textsnip.com/559ecd/xml