Switch on Maintenance Mode
<?php
//* Do NOT include the opening php tag shown above. Copy the code shown below.
<!--
Need a quick maintenance mode? Use this snippet. Just comment it out when you don’t want it switched on.
-->
<?php
function maintenace_mode() {
if ( !current_user_can( 'administrator' ) ) {
wp_die('Maintenance.');
}
}
add_action('get_header', 'maintenace_mode');
?>