public function get($pointer)
    {
        $pointer = new Pointer($pointer);
        $data    = $pointer->evaluate($this->_properties);

        return $data;
    }
public function get($pointer)
    {
        $pointer = new Pointer($pointer);
        $data    = $pointer->evaluate($this->_properties);

        return $data;
    }
public function get ( $ pointer ) { $ pointer = new Pointer ( $ pointer ) ; $ data = $ pointer -> evaluate ( $ this -> _properties ) ; return $ data ; }
Resolves the provided json pointer to an element in the document or
returns null if the element does not exist

@param string $pointer
@return mixed|null
Resolves the provided json pointer to an element in the document or returns null if the element does not exist