What are some potential pitfalls of using HTML tags that are not allowed by certain platforms like Amazon?

Using HTML tags that are not allowed by certain platforms like Amazon can result in your content being rejected or not displaying correctly. To avoid this issue, it is important to adhere to the platform's guidelines and only use approved HTML tags.

// Example of how to sanitize HTML content to remove disallowed tags for Amazon platform
$allowed_tags = '<p><strong><em><ul><li>';
$sanitized_content = strip_tags($content, $allowed_tags);
echo $sanitized_content;