What potential issues could arise from using meta refresh tags in PHP for header updates?

Potential issues that could arise from using meta refresh tags in PHP for header updates include SEO penalties, usability concerns, and accessibility issues for users with disabilities. To solve this problem, it is recommended to use PHP header functions to perform server-side redirects instead of relying on client-side meta refresh tags.

<?php
header("Location: newpage.php");
exit();
?>