Revokes Super Admin privileges.

$user_id int Required

ID of the user Super Admin privileges to be revoked from.

bool True on success, false on failure. This can fail when the user's email is the network admin email or when the $super_admins global is defined.

File: wp-includes/capabilities.php. View all references

function revoke_super_admin( $user_id ) {
	// If global super_admins override is defined, there is nothing to do here.
	if ( isset( $GLOBALS['super_admins'] ) || ! is_multisite() ) {
		return false;
	}

	/**
	 * Fires before the user's Super Admin privileges are revoked.
	 *
	 * @since 3.0.0
	 *
	 * @param int $user_id ID of the user Super Admin privileges are being revoked from.
	 */
	do_action( 'revoke_super_admin', $user_id );

	// Directly fetch site_admins instead of using get_super_admins().
	$super_admins = get_site_option( 'site_admins', array( 'admin' ) );

	$user = get_userdata( $user_id );
	if ( $user && 0 !== strcasecmp( $user->user_email, get_site_option( 'admin_email' ) ) ) {
		$key = array_search( $user->user_login, $super_admins, true );
		if ( false !== $key ) {
			unset( $super_admins[ $key ] );
			update_site_option( 'site_admins', $super_admins );

			/**
			 * Fires after the user's Super Admin privileges are revoked.
			 *
			 * @since 3.0.0
			 *
			 * @param int $user_id ID of the user Super Admin privileges were revoked from.
			 */
			do_action( 'revoked_super_admin', $user_id );
			return true;
		}
	}
	return false;
}