What are the best practices for managing different user roles and permissions with an htaccess login system in PHP?

When managing different user roles and permissions with an htaccess login system in PHP, it is important to use a combination of htaccess rules and PHP logic to control access to different parts of the website based on user roles. This can be achieved by setting up different directories with their own htaccess files and using PHP scripts to check the user's role before allowing access to specific pages or resources.

```php
// Check user role in PHP script
session_start();

if ($_SESSION['role'] !== 'admin') {
    header('HTTP/1.0 403 Forbidden');
    echo 'You are not authorized to access this page.';
    exit;
}

// HTML content for admin-only page
echo '<h1>Welcome Admin!</h1>';
```

In this example, we first start a session to store the user's role. Then, we check if the user's role is 'admin'. If not, we return a 403 Forbidden error message and exit the script. If the user is an admin, we display the content of the admin-only page.