Smarty

Your template doesn't exactly says what is the functionality you want to achieve. Knowing real filesystem path is of no concern for template.
If you need some debug data, enable debugging. It will be ...

My code is as follows:

content.tpl:

{* Smarty *}
{extends file='PageContentLayout.tpl'}

PageContentLayout.tpl

{* Smarty *}

{block name="file_n ...

This is a bug.
In your autoloader.
Autoloader MUST NOT throw errors in case it is unable to load something.
You never know, if your loader is last to be called, and you throwing errors prevent any ...

Smarty version 3.1.29.

My application has an auto-loader function which which I put on the PHP auto-load stack with spl_autoload_register(). This works fine on the whole (and worked fine in older ...