.htaccess how to make a rule?

Question

Apache HTTP Server

How to make a rule?
it is necessary that index.html be issued at the directory address (if it exists in this directory), otherwise the request is processed by index.php in document_root

Answer 1

Hastily found two solutions
either in the folder there should be an index.php file:
or .htaccess
although now I thought of it, I registered it in the root of the site in .htaccess
DirectoryIndex index.html index.php /index.php