code: public static function getPageDetails($intId)
  	{
  		@trigger_error('Using Controller::getPageDetails() has been deprecated and will no longer work in Contao 5.0. Use PageModel::findWithDetails() or PageModel->loadDetails() instead.', E_USER_DEPRECATED);
  
  		if ($intId instanceof PageModel)
  		{
  			return $intId->loadDetails();
  		}
  		elseif ($intId instanceof Collection)
  		{
  			/** @var PageModel $objPage */
  			$objPage = $intId->current();
  
  			return $objPage->loadDetails();
  		}
  		elseif (\is_object($intId))
  		{
  			$strKey = __METHOD__ . '-' . $intId->id;
  
  			// Try to load from cache
  			if (Cache::has($strKey))
  			{
  				return Cache::get($strKey);
  			}
  
  			// Create a model from the database result
  			$objPage = new PageModel();
  			$objPage->setRow($intId->row());
  			$objPage->loadDetails();
  
  			Cache::set($strKey, $objPage);
  
  			return $objPage;
  		}
  		else
  		{
  			// Invalid ID
  			if (!\strlen($intId) || $intId < 1)
  			{
  				return null;
  			}
  
  			$strKey = __METHOD__ . '-' . $intId;
  
  			// Try to load from cache
  			if (Cache::has($strKey))
  			{
  				return Cache::get($strKey);
  			}
  
  			$objPage = PageModel::findWithDetails($intId);
  
  			Cache::set($strKey, $objPage);
  
  			return $objPage;
  		}
  	}
docs: Get the details of a page including inherited parameters
  
  @param mixed $intId A page ID or a Model object
  
  @return PageModel The page model or null
  
  @deprecated Deprecated since Contao 4.0, to be removed in Contao 5.0.
  Use PageModel::findWithDetails() or PageModel->loadDetails() instead.