PhpSpreadsheet 图表未保存 and/or 损坏文件

Question

所以我正在开发一个需要生成带有图表的 Xls 文件的报告应用程序。这些图表似乎不起作用。我试过用 PhpSpreadsheet github 中的示例替换下面的代码，但这也不起作用。

我有以下方法可以将数据（和图表）插入到工作表中：

$this->spreadsheet->createSheet();

$worksheet = $this->spreadsheet->getActiveSheet();
$worksheet->setTitle($title);
$periodStartArray = array(array('', $periodStartDate, $periodEndDate));

while (!empty($stack)) {
    $node = array_pop($stack);
    if ($node->getData()['portfolioData'][0] != null) {
        if ($node->getData()['portfolioData'][0]->getIncludeInStatusSide()) {
            $startValue = (float)$this->getDataPoint($node, 'general', $this->periodStart, 'value');
            $startValuePercent = number_format(($startValue / $this->startingTotalValues) * 100, $this->percentDecimals, $decimalPoints, $separators);

            $endValue = (float)$this->getDataPoint($node, 'general', $this->periodEnd, 'value');
            $endValuePercent = number_format(($endValue / $this->endingTotalValues) * 100, $this->percentDecimals, $decimalPoints, $separators);

            $startArray = array($node->getData()['portfolioData'][0]->getNavn(), $startValuePercent, $endValuePercent);

            $periodStartArray[] = $startArray;
        }
    }
}

$maxSize = count($periodStartArray);
$worksheet->fromArray($periodStartArray);
//$title . '!$B'

$dataSeriesLabels1 = [
    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_STRING, $title . '!$B', null, 1),
];

// $maxSize - 1 should give the actual number of data points (since the first entry in the array is the 
// date row

$dataString = "'" . $title . "'" . '!$A:$A$' . $maxSize;
$xAxisTickValues1 = [
    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_STRING, $dataString, null, $maxSize - 1)
];

$dataString = "'" . $title . "'" . '!$B:$B$' . $maxSize;
$dataSeriesValues1 = [
    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_NUMBER, $dataString, null, $maxSize - 1)
];

$series = new DataSeries(
    DataSeries::TYPE_PIECHART,
    null,
    range(0, count($dataSeriesValues1) - 1),
    $dataSeriesLabels1,
    $xAxisTickValues1,
    $dataSeriesValues1
);

$layout = new Layout();
$layout->setShowVal(true);
$layout->setShowPercent(false);

$plotArea = new PlotArea($layout, array($series));
$legend = new Legend(Legend::POSITION_RIGHT, null, false);

$title = new Title($title);

$chart1 = new Chart(
    'chart1',
    $title,
    $legend,
    $plotArea,
    true, 
    0, 
    null, 
    null
);

$chart1->setTopLeftPosition('A10');
$chart1->setBottomRightPosition('P25');
$worksheet->addChart($chart1);

它成功地将数据插入到电子表格中，但没有打印出任何图表。这是我保存电子表格的位置：

$writer = new \PhpOffice\PhpSpreadsheet\Writer\Xls($this->spreadsheet);
$writer->setIncludeCharts(true);
$writer->save($this->outputFile);

所以我包括了图表，但没有出现图表。当我将格式更改为 Xlsx 时，它似乎至少尝试插入图表但它们已损坏并且 Excel 删除了它们。这只是简单的数据。从字面上看，A 列中的一行公司名称和 B 和 C 列中的两个值日期。当我在生成 excel 文件后手动插入图表时，它没有问题。

Answer 1

创建图表时将 0 更改为 'gap'。

$chart1 = new Chart(
'chart1',
$title,
$legend,
$plotArea,
true, 
'gap', // use 'gap' instead of 0, 
null, 
null

);

以下是 PhPSpreadsheet 的问题

File containing a chart can not be opened by Excel 2003/2013/2019

Answer 2

使用这个

DataSeries::EMPTY_AS_GAP, // displayBlanksAs

instaea 0

如样本文件

https://github.com/PHPOffice/PhpSpreadsheet/blob/master/samples/templates/chartSpreadsheet.php

PhpSpreadsheet 图表未保存 and/or 损坏文件

PhpSpreadsheet charts not saving and/or corrupting file

php

phpspreadsheet