My PageSorry, you must enter a valid username and password to access this page.'); } ?>
isValidUser($user, $pass)) { header('HTTP/1.1 401 Unauthorized'); header('WWW-Authenticate: Basic realm="My Page"'); exit('In this example, the user authentication is handled by an external UserDatabase class which checks the credentials provided against a database of valid users. If the user is not found or the password is incorrect, the same headers are set for an HTTP 401 Unauthorized response and the user is prompted to enter valid credentials. In conclusion, PHP Auth Basic is a lightweight authentication mechanism that can be easily implemented with basic PHP code. The package library used in these examples is not specified, but there are various packages available that provide more advanced authentication features if needed.My Page
Sorry, you must enter a valid username and password to access this page.'); } ?>