src/ArrayProcessor.php
protected function field($row, $column)
    {
        return is_object($row) && !$row instanceof \ArrayAccess ? $row->$column : $row[$column];
    }
protected function field($row, $column)
    {
        return is_object($row) && !$row instanceof \ArrayAccess ? $row->$column : $row[$column];
    }
protected function field ( $ row , $ column ) { return is_object ( $ row ) && ! $ row instanceof \ ArrayAccess ? $ row -> $ column : $ row [ $ column ] ; }
Return comparable value from a row.

@param  mixed      $row
@param  string     $column
@return int|string
Return comparable value from a row .