Function Reference/is main site

Description

Test if site is main site, given site id

<?php is_main_site( $blog_id ) ?>

$blog_id

(integer) (optional) optional site id to test (default to current site) .

Default: defaults to empty

<?php
if ( is_main_site($blog_id) ) {
  // display something special for the main site.
}
?>

Replaces function is_main_blog(), deprecated since 3.0.0. (wp-includes/ms-deprecated.php)

Since 3.0.0.

is_main_site() is located in wp-includes/functions.php.

See also index of Function Reference and index of Template Tags.