What are common pitfalls when using vlib templatesystem in PHP?

One common pitfall when using the vlib template system in PHP is forgetting to pass the necessary variables to the template file. To solve this issue, make sure to pass all required variables to the template using the `assign` method before rendering the template.

// Assign variables to the template
$template->assign('variable1', $value1);
$template->assign('variable2', $value2);

// Render the template
$template->render('template_file.tpl');