What are some common reasons for the failure of the include() function when trying to include a .tpl file in PHP?
One common reason for the failure of the include() function when trying to include a .tpl file in PHP is that the file path is incorrect. Make sure to provide the correct path to the .tpl file relative to the current file. Additionally, ensure that the file actually exists in the specified location.
<?php
include('path/to/your/template.tpl');
?>