Once the user fills in the data and clicks the Submit button, we have to execute quite a few tasks in order to register a user in the WordPress database. Let's figure out the main tasks for registering a user:
- Validating form data
- Registering the user details
- Creating and saving the activation code
- Sending e-mail notifications with an activate link or redirecting the user for payments based on the selected user type
We will be using a separate function called register_user to handle form submission. Validating user data is one of the main tasks in form submission handling. So, let's define the register_user function using the init action inside the class constructer, as shown in the following code: ...
