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domain_exists

Definition:
function domain_exists($domain, $path, $site_id = 1) {}

Check whether a blogname is already taken.
Used during the new site registration process to ensure that each blogname is unique.

Parameters

  • string $domain: The domain to be checked.
  • string $path: The path to be checked.
  • int $site_id: Optional. Relevant only on multi-network installs.

Source code

function domain_exists($domain, $path, $site_id = 1) {

	global $wpdb;

	return $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s AND site_id = %d", $domain, $path, $site_id) );

}

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