PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

666 Chapter 29 Building a Web-Based Email Service
As you can see, the code calls the login() function, which is similar to the one used in
Chapters 27,“Building User Authentication and Personalization,” and 28,“Building a
Shopping Cart.” If all goes well, you register the username in the session variable
auth_user.
In addition to setting up the buttons you saw while not logged in, you add another
button to allow the user to log out again, as follows:
if(check_auth_user()) {
$buttons[4] = 'log-out';
}
You can see this Log Out button in Figure 29.3.
In the header stage, you again display the header and the buttons. In the body, you
display the status message you set up earlier:
echo $status;
After that, you just need to print the footer and wait to see what the user will do next.
Setting Up Accounts
When a user first starts using the Warm Mail system, he will need to set up some email
accounts. If the user clicks on the Account Setup button, this will set the action variable
to account-setup and recall the index.php script.The user will then see the output
shown in Figure 29.4.
Figure 29.4
A user needs to set up his email account details
before he can read his email.