{capture assign=last_name}{contact.last_name}{/capture}{$last_name|upper}
I'm trying to render my contact name in uppercases with Smarty and include letters with accents.
At the bottom of this page in the the Smarty doc: https://www.smarty.net/docs/en/language.modifier.upper.tpl
It is advised to use {$your_variable|@strtoupper}
but {capture assign=last_name}{contact.last_name}{/capture}{$last_name|@strtoupper}
doesn't work