In the examples below the PHP code is saved to an index.php file at the domain root (http://www.lroguet.com) and redirects to the “blog” sub-domain (http://blog.lroguet.com)
Temporary redirect (302)
<?php
header("Location: http://blog.lroguet.com");
Permanent redirect (301)
<?php
header("Status: 301 Moved Permanently");
header("Location: http://blog.lroguet.com");