What are the common errors that can occur when trying to include PHP files within a Smarty template?

When including PHP files within a Smarty template, common errors can occur if the PHP tags are not properly formatted or if there are syntax errors within the included PHP file. To solve this issue, make sure to use the correct PHP opening and closing tags within the Smarty template, and ensure that the included PHP file does not contain any syntax errors.

{include_php file="path/to/your/php/file.php"}