public function getOwnerName()
    {
        $userId = $this->getOwner();
        if ($userId) {
            $userData = posix_getpwuid($userId);
            return ((isset($userData['name'])) ? $userData['name'] : null);
        }
        return false;
    }
public function getOwnerName()
    {
        $userId = $this->getOwner();
        if ($userId) {
            $userData = posix_getpwuid($userId);
            return ((isset($userData['name'])) ? $userData['name'] : null);
        }
        return false;
    }
public function getOwnerName ( ) { $ userId = $ this -> getOwner ( ) ; if ( $ userId ) { $ userData = posix_getpwuid ( $ userId ) ; return ( ( isset ( $ userData [ 'name' ] ) ) ? $ userData [ 'name' ] : null ) ; } return false ; }
return user name of the file or directory

@return      string         user name of file owner
return user name of the file or directory