Smarty获取文件扩展名

Question

is there a way in Smarty to get the file extension of a string. I have been searching for the explode equivalent although can't seem to find anything.

I am wanting to display a different icon based on the type of file eg. doc,docx,pdf

Answer 1

Since you can use php functions as modifiers, you can use the function pathinfo()

All php-functions can be used as modifiers implicitly, as demonstrated in the example above. However, using php-functions as modifiers has two little pitfalls:

First - sometimes the order of the function-parameters is not the desirable one. Formatting $foo with {"%2.f"|sprintf:$foo} actually works, but asks for the more intuitive, like {$foo|string_format:"%2.f"} that is provided by the Smarty distribution.

Secondly - if security is enabled, all php-functions that are to be used as modifiers have to be declared trusted in the $modifiers property of the securty policy. See the Security section for details. Source

<?php

$smarty->assign('filename', 'foo\bar.txt');

?>

{* template *}

{$filename|pathinfo:$smarty.const.PATHINFO_EXTENSION}
{* outputs 'txt' *}