Extbase controller v12
======================

Page ID::

  $this->currentRequest->getAttribute('routing')->getPageId();

or::

  $uriBuilder = GeneralUtility::makeInstance(UriBuilder::class);
  $uriBuilder->getRequest()->getAttribute('routing')->getPageId();

Content element UID::

  $this->request->getAttribute('currentContentObject')->data['uid']



Extbase controller v10
======================

Access the current page's ID and content element ID in an exbase controller action::

  $contentObj = $this->configurationManager->getContentObject();
  $pageUid = $contentObj->data['pid'];
  $contentElementUid = $contentObj->data['uid'];



Fluid
=====
With vhs::

    {v:page.info(field: 'uid')}