The PHP-file contains at least one PHP function.
It may contain up to, say, 20.000 functions. Those functions correspondent with additional Loudblog-Tag which have the same name.
Plain Tags
Let’s say that you want to write a function that is called “helloworld”.
function helloworld() { }
This function will be called evertime the template-parser explores the following Loudblog-Tag:
<lb:helloworld />
“Containing” Tags
The same goes with Linking-, Looping-, or Conditional Tags:
function link_momsblog($content) { }
This will be called when the template says:
<lb:link_momsblog>Go to Mom’s Blog</lb:link_momsblog>
The variable $content will be explained here