In smarty, strip_tags first filters the html tags and then truncate intercepts the article and uses it.

strip_tags() function strips HTML, XML and PHP tags.

strip_tags() function strips HTML, XML and PHP tags.

The code is as follows:

<?php echo strip_tags(“Hello <b>world!</b>”); ?>

You can use strip_tags in smarty to remove html tags, including any content between .
For example:
index.php:

The code is as follows:

$smarty = new Smarty; 
$smarty->assign(‘articleTitle&#39;, “Blind Woman Gets <span style=”font-family: &amp;”>New Kidney</span> from Dad she Hasn&#39;t Seen in <strong>years</strong>.”); 
$smarty->display(‘index.tpl&#39;);

index.tpl:

The code is as follows:

{$articleTitle} 
{$articleTitle|strip_tags}

Output result:

The code is as follows:

Blind Woman Gets <span style=”font-family: helvetica;”>New Kidney</span> from Dad she Hasn&#39;t Seen in <strong>years</strong>. 
Blind Woman Gets New Kidney from Dad she Hasn&#39;t Seen in years.

Article interception:

The code is as follows:

{$article.content|truncate:35:”…”:true}