Find highest column in row PHPExcel

问题

I am triying to read all columns from an excel file but its number is variable depending on the row. For example: Row1, col2, col3, col4 Row2, col2,col3 Row3,col2,col3,col4,col5,col6

I am trying to do something like:

for ($row = 1; $row < 2; $row++){
    $rowData = $sheet->rangeToArray('A' . $row . ':' . $highestColumn . $row,
                                    NULL,
                                    TRUE,
                                    FALSE);
    echo print_r($rowData[0][0]);
    echo "<br>";
    $list_of_coordinates = "";
    $i = 1;
    //echo print_r($rowData[$row][$i+1]);
    while($rowData[0][$i+1] != ""){
      /*$list_of_coordinates = $list_of_coordinates . 
                             "," .
                             $rowData[0][$i+1] . 
                             "," .
                             $rowData[0][$i];
      */
      $i+2;
    }
    $list_of_coordinates = ltrim($list_of_coordinates, ",");
    echo $list_of_coordinates;
    echo "<br>";
  }

But the $highestcolumn has the column number of the maximum one, in this file: BM. But some of the rows have just 3 or 4 columns. Is it possible to update this number? MY while loop is not working right now.

回答1:

The getHighestColumn() and getHighestDataColumn() methods accept an optional row number as an argument. If called without passing any argument, they will return the highest column number in the worksheet; but if called with a row number, they will return the highest column in the specified row.

However, as an alternative, you could use the row and column iterators, for existing cells only (see 28iterator.php in /Examples).

来源：https://stackoverflow.com/questions/35268345/find-highest-column-in-row-phpexcel

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