How to safely output {$smarty.get.sort} via smarty?

Question

PHP

A parameter is passed to GET, let's say sort. How to safely withdraw through smarty {$smarty.get.sort}?

Answer 1

If you don't have an explicit type for this variable, it's dangerous. If there is a rigid typing, then there should be no questions about safe.
In the code, check either is_int and others or with a type ghost ( int ) $_GET['sort'];
in smarty this is {if $smarty.get.sort|is_int} TRUE {/if}