I'm changing my project to RainTPL and found nothing in their documentation about it.
Before I used it as follows:
<form method="POST" class="row py-4" action="">
<?php
$nome = (!empty($_POST['nome'])) ? $_POST['nome'] : '';
$telefone = (!empty($_POST['telefone'])) ? $_POST['telefone'] : '';
?>
<input type="text" class="col-3 form-control" name="nome" placeholder="Nome" value="<?php echo htmlentities($nome); ?>">
<input type="text" class="col-3 form-control" name="telefone" placeholder="Telefone" value="<?php echo htmlentities($telefone); ?>">
How would you use this with RainTPL?