How can DNS records be utilized to effectively manage redirect destinations in PHP?

When managing redirect destinations in PHP, DNS records can be utilized by setting up CNAME or A records to point to the desired redirect destination. This allows for easy management and updating of redirect destinations without having to modify PHP code.

// Example of utilizing DNS records for redirect management in PHP

// Get the redirect destination from a DNS record
$redirectDestination = gethostbyname("example.com");

// Redirect the user to the destination
header("Location: $redirectDestination");
exit();