strip_tags

Strips out markup tags, basically anything between < and >.

Parameter Position	Type	Required	Default	Description
1	bool	No	true	This determines whether the tags are replaced by ' ' or ''
2	string	No	n/a	If any tag is to be excluded from stripping.

Template:

{$articleTitle = 'Blind Woman Gets <font face="helvetica">NewKidney</font> from <i>Dad</i> she Hasn\'t Seen in <b>years</b>.'}

{$articleTitle}

{$articleTitle|strip_tags} {* same as {$articleTitle|strip_tags:true} *}

{$articleTitle|strip_tags:false}

{$articleTitle|strip_tags:false:'<i><b>'} {*Keep i and b tag and remove other tags.*}

output:

Blind Woman Gets <font face="helvetica">New Kidney</font> from <i>Dad</i> she Hasn't Seen in <b>years</b>.

Blind Woman Gets  New Kidney  from Dad she Hasn't Seen in  years .

Blind Woman Gets New Kidney from Dad she Hasn't Seen in years.

Blind Woman Gets New Kidney from <i>Dad</i> she Hasn't Seen in <b>years</b>.

see also strip_tags in PHP Smarty documentation.