Question

Does Smarty3 has the “in” operator that works like Twig’s one:

{% if option in [1, 2, 3] %}

?

Answer 1

yes and no. Smarty does not have its own syntax for this, but you can do it like this:

{if in_array("foo", ["bar", "foo"])}

Personally I find the in keyword confusing. PHP itself doesn’t know it. Javascript, the only other programming language relevant to a template developer, treats the in keyword as array_key_exists() rather than in_array(). Not sure if I wanted a given template engine to do something different…