How can one check if a user is logged in to a specific folder using htaccess in PHP?

To check if a user is logged in to a specific folder using htaccess in PHP, you can use the $_SERVER['PHP_AUTH_USER'] variable to access the username provided by the user during the authentication process. You can then compare this username with a list of allowed users to determine if the user is logged in or not. 

<?php
$allowed_users = array('user1', 'user2', 'user3'); // List of allowed users

if (in_array($_SERVER['PHP_AUTH_USER'], $allowed_users)) {
    echo "User is logged in to the specific folder.";
} else {
    header('WWW-Authenticate: Basic realm="Restricted Area"');
    header('HTTP/1.0 401 Unauthorized');
    echo "Access denied.";
    exit;
}
?>

Keywords

PHP htaccess authentication session directory access

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