What are the potential drawbacks of relying on Apache's default error pages for handling authentication errors in PHP?

Relying on Apache's default error pages for handling authentication errors in PHP can lead to a lack of customization and user-friendly messaging. To solve this issue, you can create custom error pages in PHP that provide more informative messages to users when authentication errors occur.

<?php
// Custom error page for authentication errors
header("HTTP/1.1 401 Unauthorized");
echo "<h1>401 Unauthorized</h1>";
echo "<p>Sorry, you are not authorized to access this page. Please log in with the correct credentials.</p>";
?>