src/Controller/Ajax.php
protected function getGet($key, $decodeEntities = false)
    {
        return $this->getEnvironment()->getInputProvider()->getParameter($key, $decodeEntities);
    }
protected function getGet($key, $decodeEntities = false)
    {
        return $this->getEnvironment()->getInputProvider()->getParameter($key, $decodeEntities);
    }
protected function getGet ( $ key , $ decodeEntities = false ) { return $ this -> getEnvironment ( ) -> getInputProvider ( ) -> getParameter ( $ key , $ decodeEntities ) ; }
Compat wrapper for contao 2.X and 3.X - delegates to the relevant input handler.

@param string $key            The key to retrieve.
@param bool   $decodeEntities Decode the entities.

@return mixed
Compat wrapper for contao 2 . X and 3 . X - delegates to the relevant input handler .