How to make dynamic text that changes at a certain subdomain value?

Question

htaccess

How to make dynamic text that changes at a certain subdomain value?
For example, on the spb.site.ru subdomain, the text should change from Moscow to St. Petersburg.
Thank you!

Answer 1

What is the site on? Pure static HTML? If so, then use js to look at the page address in location.href and, based on it, replace the text as needed.

Answer 2

For those who need a way for JOOMLA.
1) Install the Sourceer plugin from Regular Labs, even the Lite version is enough
2) Insert the HTML insert {source}<?php if (strpos( $_SERVER['HTTP_HOST'], 'krd.site.ru') !== false ){ echo "Krasnodar"; } else { echo "Saint-Petersburg";}
?>{/source}
3) Here are more options How can I compare the text and the response from the server using PHP and display the specified value?