How can PHP developers ensure a seamless user experience when redirecting from HTML emails?

When redirecting from HTML emails, PHP developers can ensure a seamless user experience by using header redirection along with a delay to allow users to read the email content before being redirected. This can be achieved by setting the Location header with the destination URL and using the sleep function to delay the redirection.

<?php
// Set the destination URL
$destination = 'https://example.com';

// Delay the redirection for 5 seconds
sleep(5);

// Redirect to the destination URL
header("Location: $destination");
exit;
?>