add a feature

[Xontero]

hi

how can I add this feature like below

thanks in advance

[SlawkA]

Arashr 

I can suggest this:

<span class='aupTitle'><i class="fa fa-calendar-o fa-lg" aria-hidden="true"></i> {lang="joined"}</span><br/>
<strong><span class='aupContent'>{datetime="$comment->author()->joined" dateonly="true"}</span></strong><br/>
{{$date_joined = floor((strtotime("now")-strtotime("{$comment->author()->joined}"))/86400) ;}}
{lang="На сайте"} <strong><span class='aupTitle'>{$date_joined} дней</span></strong>