original_string: public function unmergeCellsByColumnAndRow($pColumn1 = 0, $pRow1 = 1, $pColumn2 = 0, $pRow2 = 1)
      {
          $cellRange = PHPExcel_Cell::stringFromColumnIndex($pColumn1) . $pRow1 . ':' . PHPExcel_Cell::stringFromColumnIndex($pColumn2) . $pRow2;
          return $this->unmergeCells($cellRange);
      }
code: public function unmergeCellsByColumnAndRow($pColumn1 = 0, $pRow1 = 1, $pColumn2 = 0, $pRow2 = 1)
      {
          $cellRange = PHPExcel_Cell::stringFromColumnIndex($pColumn1) . $pRow1 . ':' . PHPExcel_Cell::stringFromColumnIndex($pColumn2) . $pRow2;
          return $this->unmergeCells($cellRange);
      }
code_tokens: public function unmergeCellsByColumnAndRow ( $ pColumn1 = 0 , $ pRow1 = 1 , $ pColumn2 = 0 , $ pRow2 = 1 ) { $ cellRange = PHPExcel_Cell :: stringFromColumnIndex ( $ pColumn1 ) . $ pRow1 . ':' . PHPExcel_Cell :: stringFromColumnIndex ( $ pColumn2 ) . $ pRow2 ; return $ this -> unmergeCells ( $ cellRange ) ; }
docstring: Remove merge on a cell range by using numeric cell coordinates
  
  @param int $pColumn1    Numeric column coordinate of the first cell
  @param int $pRow1        Numeric row coordinate of the first cell
  @param int $pColumn2    Numeric column coordinate of the last cell
  @param int $pRow2        Numeric row coordinate of the last cell
  @throws    PHPExcel_Exception
  @return PHPExcel_Worksheet
docstring_tokens: Remove merge on a cell range by using numeric cell coordinates