?php
ob_start
header('HTTP/1.1 503 Service Temporarily Unavailable');
header('Status: 503 Service Temporarily Unavailable');
header('Retry-After: Sat, 8 Oct 2015 18:27:00 GMT');
header('X-Powered-By:');
503 Service TemporarilyUnavailable
Service TemporarilyUnavailable