UBB.threads PHP Forum Software Community Forums Resources and Customizing How Do I? PHP Variable Scope on Included Code

It probably has something to do with security. You are attempting to run php within the Smarty 3.1 templates.

Again, you may want to look at moving your custom code in to the php scripts, and out of the templates. Thats the advice directly from Smarty 3.1

"Put your PHP logic in PHP scripts or plugin functions instead"
https://www.smarty.net/docs/en/language.function.php.tpl