public function offsetGet($offset)
    {
        $this->validateKeyType($offset);
        $this->validateKeyBounds($offset);

        return $this->container[$offset];
    }
public function offsetGet($offset)
    {
        $this->validateKeyType($offset);
        $this->validateKeyBounds($offset);

        return $this->container[$offset];
    }
public function offsetGet ( $ offset ) { $ this -> validateKeyType ( $ offset ) ; $ this -> validateKeyBounds ( $ offset ) ; return $ this -> container [ $ offset ] ; }
identical to at, implemented for ArrayAccess
identical to at implemented for ArrayAccess