contoh excel graph laravel(?)

<?php
//lebih baik use dibawah digunakan semua di header controllernya
use PhpOffice\PhpSpreadsheet\Chart\Chart;
use PhpOffice\PhpSpreadsheet\Chart\DataSeries;
use PhpOffice\PhpSpreadsheet\Chart\DataSeriesValues;
use PhpOffice\PhpSpreadsheet\Chart\Legend as ChartLegend;
use PhpOffice\PhpSpreadsheet\Chart\PlotArea;
use PhpOffice\PhpSpreadsheet\Chart\Properties;
use PhpOffice\PhpSpreadsheet\Chart\Title;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Settings;

use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
/**INFO
membuat Chart Sederhana (Clean)
khusus Native
**/
//jika di laravel.. 2 line ini tidak digunakan

require_once( __DIR__."/../../vendor/autoload.php");
//anggap saja langsung method nya

function exportXls(){

    $spreadsheet = new Spreadsheet();
    $worksheet = $spreadsheet->getActiveSheet();
//silahkan ditambahkan
    $dataGraph =[
        ['', 2010, 2011, 2012, 2013],
        ['Q1', 12, 15, 21,25],
        ['Q2', 56, 73, 86, 80],
        ['Q3', 52, 61, 69,71],
        ['Q4', 30, 32, 0, 0],
        ['Q5', 40, 82, 60, 60]
    ]
    ;

    $totalData = count($dataGraph);

    //Asumsikan kamu tahu posisinya
    $worksheet->fromArray(
         $dataGraph
    );

    // Set the Labels for each data series we want to plot
    //     Datatype
    //     Cell reference for data
    //     Format Code
    //     Number of datapoints in series
    //     Data values
    //     Data Marker
    $dataSeriesLabels=[];
//B:66
    for($i=1;$i<count($dataGraph[0]); $i++){
        $pos=$i+65;
        $posTitle = chr( $pos );
        $dataSeriesLabels[]= new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_STRING,
        'Worksheet!$'. $posTitle.'$1', null, 1);
    }

    $dataSeriesLabels[0]->setFillColor('FF0000');
    // Set the X-Axis Labels
    //     Datatype
    //     Cell reference for data
    //     Format Code
    //     Number of datapoints in series
    //     Data values
    //     Data Marker
    $xAxisTickValues = [
        new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_STRING,
        'Worksheet!$A$2:$A$'.$totalData, null, 4), // Q1 to Q(last)
    ];
    // Set the Data values for each data series we want to plot
    //     Datatype
    //     Cell reference for data
    //     Format Code
    //     Number of datapoints in series
    //     Data values
    //     Data Marker
    $dataSeriesValues=[];
    for($i=1;$i<count($dataGraph[0]); $i++){
        $pos=$i+65;
        $posTitle = chr( $pos );
        $dataSeriesValues[]= new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_NUMBER,
        'Worksheet!$'.$posTitle.'$2:$'.$posTitle.'$'.$totalData, null, 4);
    }

    $dataSeriesValues[2]->setLineWidth(60000 / Properties::POINTS_WIDTH_MULTIPLIER);

    // Build the dataseries
    $series = new DataSeries(
        DataSeries::TYPE_LINECHART, // plotType
        null, // plotGrouping, was DataSeries::GROUPING_STACKED, not a usual choice for line chart
        range(0, count($dataSeriesValues) - 1), // plotOrder
        $dataSeriesLabels, // plotLabel
        $xAxisTickValues, // plotCategory
        $dataSeriesValues        // plotValues
    );

    // Set the series in the plot area
    $plotArea = new PlotArea(null, [$series]);
    // Set the chart legend
    $legend = new ChartLegend(ChartLegend::POSITION_TOPRIGHT, null, false);

    $title = new Title('Test Line Chart');
    $yAxisLabel = new Title('Value ($k)');

    // Create the chart
    $chart = new Chart(
        'chart1', // name
        $title, // title
        $legend, // legend
        $plotArea, // plotArea
        true, // plotVisibleOnly
        'gap',  // displayBlanksAs
        null, // xAxisLabel
        $yAxisLabel  // yAxisLabel
    );

    // Set the position where the chart should appear in the worksheet
    $chart->setTopLeftPosition('A'.($totalData + 3) );
    $chart->setBottomRightPosition('M'.($totalData+15) );
    // Add the chart to the worksheet
    $worksheet->addChart($chart);


    $writer = new Xlsx($spreadsheet);
    $writer->setIncludeCharts(true);
    $writer->save(__DIR__.'/example.xlsx');

    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Disposition: attachment;filename="contoh'.date("Ymdhis").'.xlsx"');
    header('Cache-Control: max-age=0');
    // If you're serving to IE 9, then the following may be needed
    header('Cache-Control: max-age=1');

    // If you're serving to IE over SSL, then the following may be needed
    header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
    header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
    header('Cache-Control: cache, must-revalidate'); // HTTP/1.1
    header('Pragma: public'); // HTTP/1.0

    $txt = file_get_contents( __DIR__.'/example.xlsx' );
    unlink( __DIR__.'/example.xlsx' );
    echo $txt;

}

exportXls();