How can PHP be used to retrieve the currently logged in user in a secure area authenticated with htaccess/htpasswd?

When a user is authenticated using htaccess/htpasswd, PHP does not have direct access to the logged-in user's credentials. However, you can retrieve the currently logged-in user by accessing the `$_SERVER['REMOTE_USER']` variable, which contains the username of the authenticated user. 

<?php
session_start();
if(isset($_SERVER['REMOTE_USER'])){
    $loggedInUser = $_SERVER['REMOTE_USER'];
    echo "Logged in user: " . $loggedInUser;
} else {
    echo "User not logged in.";
}
?>

Keywords

PHP htaccess htpasswd authentication user retrieval

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