Home directories for authorized users

Question

PHP

After authorization, the user automatically goes to his home directory like host/home.
It is necessary to lock the user in this directory and make this directory his home directory, similar to shared hosting. What is the best way to organize this for an unlimited number of users? Looked at mod_userdir and others, the concept is not too clear.
I read habrahabr.ru/post/166375/, the solution is not very suitable.
Authorization is done via http. The number of users is growing. win apache. File manager for users.