What are the potential security risks of including the admin area in the same file as the password prompt in PHP?

Including the admin area in the same file as the password prompt in PHP can pose security risks because it exposes sensitive admin functionalities to potential attackers. To mitigate this risk, it is recommended to separate the admin area code from the password prompt code into separate files. This way, the admin functionalities are not directly accessible through the password prompt page.

// admin.php
// This file contains the admin functionalities

// password_prompt.php
// This file contains the password prompt code