core-bundle/src/Resources/contao/classes/Versions.php
protected function getUserId()
	{
		if ($this->intUserId !== null)
		{
			return $this->intUserId;
		}

		$this->import(BackendUser::class, 'User');

		return $this->User->id;
	}
protected function getUserId()
	{
		if ($this->intUserId !== null)
		{
			return $this->intUserId;
		}

		$this->import(BackendUser::class, 'User');

		return $this->User->id;
	}
protected function getUserId ( ) { if ( $ this -> intUserId !== null ) { return $ this -> intUserId ; } $ this -> import ( BackendUser :: class , 'User' ) ; return $ this -> User -> id ; }
Return the user ID

@return string
Return the user ID