The default WordPress features include backend login. However, it's not considered a user-friendly feature, because the user completely switches from the frontend to the backend interface. Users who are not familiar with WordPress may feel confused due to the differences between the interfaces and the inability to switch back to the frontend directly from the backend login. Most site administrators want to get rid of the backend login and implement a frontend login where the login interface is similar to any other form in the frontend.
The default features don't provide a frontend login, and hence we need a custom implementation or a plugin to implement a login form. In this recipe, we are going to use an existing plugin from the WordPress plugin repository to display a frontend login form on the site and log the user in without them...