insert_blog() WordPress Function

The insert_blog() function is used to add a new blog to the WordPress database. The function takes two arguments: the name of the blog and the URL of the blog. The function will return the new blog's ID if the blog is successfully added to the database. Otherwise, the function will return an error.

insert_blog( string $domain, string $path, int $site_id ) #

function insert_blog($domain, $path, $site_id) {
	_deprecated_function( __FUNCTION__, '5.1.0', 'wp_insert_site()' );

	$data = array(
		'domain'  => $domain,
		'path'    => $path,
		'site_id' => $site_id,
	);

	$site_id = wp_insert_site( $data );
	if ( is_wp_error( $site_id ) ) {
		return false;
	}

	clean_blog_cache( $site_id );

	return $site_id;
}