apply_filters( 'domain_exists', int|null $result, string $domain, string $path, int $network_id )  Filters whether a site name is taken.   Description The name is the site’s subdomain or the site’s subdirectory path depending on the network settings.   Parameters   $result int|null    The site ID if the site name exists, null otherwise.    $domain string    Domain to be checked.    $path string    Path to be checked.    $network_id int    Network ID. Relevant only on multi-network installations.      Source  File: wp-includes/ms-functions.php. View all references  return apply_filters( 'domain_exists', $result, $domain, $path, $network_id );
   Related  Used By    Used By Description      domain_exists() wp-includes/ms-functions.php   Checks whether a site name is already taken.   
    Changelog    Version Description     3.5.0 Introduced.    

    
{'path': 'public/docs/wordpress/hooks/domain_exists.html', 'source': 'DevDocs.IO'}