What is a template and a template tag?
Designers utilize template tags within a template to easily parameterize the output of the template itself.
Let’s compare Movable Type’s templating language side-by-side with PHP:
<html> <head> <title><?php echo $BLOG_NAME; ?></title> </head> <body>...</body> </html>
Movable Type Template Tag Syntax
<html> <head> <title><mt:BlogName></title> </head> <body>...</body> </html>
As you can see they are virtually identical. We will leave the debate of language aesthetics to the uber-geeky.