unescape

_unescape _is used to decode entity, html and htmlall. It counters the effects of the escape modifier for the given types.

This modifier for some formats may use JavaScript ports of PHP functions htmlspecialchars(), htmlentities, rawurlencode You can find them at phpjs.org

Parameter Position	Type	Required	Default	Description
1	string	No	html	This is the escape format to use. Possible values are: html, htmlall, and entity
2	string	No	UTF-8	The character set encoding passed to html_entity_decode() or htmlspecialchars_decode() or mb_convert_encoding() et. al. ISO-8859-1, UTF-8, and any character set supported by htmlentities()

Template:

{$articleTitle = "Germans use "Ümlauts" and pay in €uro"}

{$articleTitle}

{$articleTitle|unescape:"html"}

{$articleTitle|unescape:"htmlall"}

output:

Germans use "Ümlauts" and pay in €uro

Germans use "Ümlauts" and pay in €uro

Germans use "Ümlauts" and pay in €uro

see also unescape in PHP Smarty documentation.