public function offsetGet($index)
    {
        return isset($this->rows[$index]) ? $this->rows[$index] : null;
    }
public function offsetGet($index)
    {
        return isset($this->rows[$index]) ? $this->rows[$index] : null;
    }
public function offsetGet ( $ index ) { return isset ( $ this -> rows [ $ index ] ) ? $ this -> rows [ $ index ] : null ; }
Implement offsetGet for ArrayAccess interface

@param integer $index The index of row need to be removed

@return array The row data at the context
Implement offsetGet for ArrayAccess interface