php - How to find out how many rows and columns to read from an Excel file with PHPExcel?

Question

With the following code, I am able to read the cells out of an Excel file with PHPExcel.

I currently manually define how many rows and columns to read.

Is there a way that PHPExcel can tell me how many rows and columns I have to read to get all the data out of the worksheet, e.g. even if some rows and columns are left blank?

$file_name = htmlentities($_POST['file_name']);
$sheet_name = htmlentities($_POST['sheet_name']);
$number_of_columns = htmlentities($_POST['number_of_columns']);
$number_of_rows = htmlentities($_POST['number_of_rows']);

$objReader = PHPExcel_IOFactory::createReaderForFile("data/" . $file_name);
$objReader->setLoadSheetsOnly(array($sheet_name));
$objReader->setReadDataOnly(true);
$objPHPExcel = $objReader->load("data/" . $file_name);

echo '<table border="1">';
for ($row = 1; $row < $number_of_rows; $row++) {
    echo '<tr>';
    for ($column = 0; $column < $number_of_columns; $column++) {
        $value = $objPHPExcel->setActiveSheetIndex(0)->getCellByColumnAndRow($column, $row)->getValue();
        echo '<td>';
        echo $value . '&nbsp;';
        echo '</td>';
    }
    echo '</tr>';
}
echo '</table>';

Solution:

Thanks, Mark, here's the full solution with those functions:

$file_name = htmlentities($_POST['file_name']);
$sheet_name = htmlentities($_POST['sheet_name']);
$number_of_columns = htmlentities($_POST['number_of_columns']);
$number_of_rows = htmlentities($_POST['number_of_rows']);

$objReader = PHPExcel_IOFactory::createReaderForFile("data/" . $file_name);
$objReader->setLoadSheetsOnly(array($sheet_name));
$objReader->setReadDataOnly(true);

$objPHPExcel = $objReader->load("data/" . $file_name);

$highestColumm = $objPHPExcel->setActiveSheetIndex(0)->getHighestColumn();
$highestRow = $objPHPExcel->setActiveSheetIndex(0)->getHighestRow();

echo 'getHighestColumn() =  [' . $highestColumm . ']<br/>';
echo 'getHighestRow() =  [' . $highestRow . ']<br/>';

echo '<table border="1">';
foreach ($objPHPExcel->setActiveSheetIndex(0)->getRowIterator() as $row) {
    $cellIterator = $row->getCellIterator();
    $cellIterator->setIterateOnlyExistingCells(false);
    echo '<tr>';
    foreach ($cellIterator as $cell) {
        if (!is_null($cell)) {
            $value = $cell->getCalculatedValue();
            echo '<td>';
            echo $value . '&nbsp;';
            echo '</td>';
        }
    }
    echo '</tr>';
}
echo '</table>';

Answer 1

$objPHPExcel->setActiveSheetIndex(0)->getHighestColumn();

and

$objPHPExcel->setActiveSheetIndex(0)->getHighestRow();

or

$objPHPExcel->setActiveSheetIndex(0)->calculateWorksheetDimension();

which returns a range as a string like A1:AC2048

although trailing blank rows and columns are included in these.

EDIT

or you can use the iterators to loop through the existing rows and columns to get each cell within the worksheets used range. See /Tests/28iterator.php in the production distribution for an example. The iterators can be set to ignore blanks.