How to open the PU of each subdomain with dynamic subdomains?

Question

PHP

Good day.
I create dynamic subdomains through the .htaccess file:

RewriteBase /
RewriteCond %{HTTP_HOST} !^www\.site\.ru$
RewriteCond %{HTTP_HOST} ^(.*)\.site\.ru$
RewriteRule ^(.*)$ https://site.ru/blog.php?user=%1 [L,P]

Only the main page of the blog works with this code, for example "user1.site.ru".
You need to make it possible to open the control panel, i.e. "user1.site.ru/panel".
At the moment, when opening the PU, it still shows the main page. The search did not give success, tell me something

Answer 1

You open the blog.php file in the editor
, look for the code that displays the pages,
you find an error in it , you
fix it