What common issues do users face when using PHPExcel-Writer to generate Excel files with charts?

One common issue users face when using PHPExcel-Writer to generate Excel files with charts is the incorrect formatting or styling of the chart elements. This can be solved by properly setting the chart properties, such as title, labels, colors, and data series. Additionally, users may encounter problems with chart data not being displayed correctly, which can be resolved by ensuring that the data is properly formatted and structured before adding it to the chart. 

// Set chart properties
$chart = new PHPExcel_Chart(
    'chart1', // Name
    null, // Title
    null, // Legend
    null, // Data
    PHPExcel_Chart::TYPE_BAR, // Type
    null // Format
);

// Set chart data series
$chart->setXAxisLabel('Category');
$chart->setYAxisLabel('Value');
$chart->addSeries(new PHPExcel_Chart_DataSeries(
    PHPExcel_Chart_DataSeries::TYPE_BARCHART,
    PHPExcel_Chart_DataSeries::GROUPING_CLUSTERED,
    range(0, count($data) - 1),
    range(0, count($data) - 1),
    $labels,
    $values
));

// Add chart to worksheet
$worksheet->addChart($chart);

Keywords

PHPExcel-Writer Excel files charts generation issues

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