XF 2.1 service user profile

[wakon5544]

I would like to show you an article about how many years the member has hosted on xf. Here's how we do it in mybb as the codes below.

<setvar years>floor((TIME_NOW-$post['regdate'])/(60*60*24*365))</setvar>
<span class="service-{$GLOBALS['tplvars']['years']}">{$GLOBALS['tplvars']['years']} years of service</span>

.service-1 {
color: pink;
}
.service-2 {
color: yellow;
}
.service-3 {
color: red;
}
.service-4 {
color: orange;
}