bootstrap alert template

HTML

<!-- Alert Basic -->
<div class="alert alert-primary mb-3" role="alert">
  A simple primary alert—check it out!
</div>

<!-- Alert in Templated Form -->
<!-- insert of the alert types into the @alert_type -->
<div class="alert alert-[@alert_type] mb-3" role="alert">
  [@content]
</div>

PHP

/*
Alert Template 
primary
secondary
success
danger
warning
info
light
dark
*/
$alert_template = new template("alert.html");
$alert_template->set("alert_type", "warning");
$alert_template->set("content", "Message");
$alert_html = $alert_template->output();