What are the potential issues when trying to redirect a subdomain to an IP address in PHP?

One potential issue when trying to redirect a subdomain to an IP address in PHP is that the redirection may not work properly due to DNS configurations or server settings. To solve this issue, you can use PHP to perform a server-side redirect by sending the appropriate HTTP headers. 

<?php
// Perform a server-side redirect to the IP address
$ip_address = '123.456.789.0';
header("Location: http://$ip_address");
exit;
?>

Keywords

subdomain redirect IP address DNS htaccess

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