JezK

Edit File: export-invoices.php

<?php
include_once("app/adminObj.php");
include_once("app/checkSession.php");
require_once("../vendor/autoload.php");

use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\IOFactory;
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename="MaterialTransaction.xlsx"');
header('Cache-Control: max-age=0');
header('Cache-Control: max-age=1');
header('Cache-Control: cache, must-revalidate');
header('Pragma: public');

$spreadsheet = new Spreadsheet();

//Specify the properties for this document

//To apply auto size to all fields from B to Z
foreach(range('B','K') as $columnID) {
    $spreadsheet->getActiveSheet()->getColumnDimension($columnID)
        ->setAutoSize(true);
}
// $rows = $adminObj->db->get_results($sql);
// print_r($_GET);

$sql= "select ui.quotation_id,ui.total_value,ui.warehouse_id,umw.warehouse_name,umw.warehouse_email from uflexit_masteradmin_invoices as ui join uflexit_master_warehouse as umw on umw.warehouse_id=ui.warehouse_id  ";
$details = $adminObj->db->get_results($sql);

$col = 'A';
$heading_array=array('S.No','Quatation ID','Warehouse ID','Warehouse Name','email','value');
// setting the heading
$i =1;
foreach($heading_array as $heading)
{
    
    
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i,$heading);
   
}

$j=1;
if($details){
    foreach($details as $row)
{
    $col = 'A';
    $i++;  
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i ,$j++);
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i ,$row['quotation_id']);
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i,$row['warehouse_id']);
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i,$row['warehouse_name']);
	$spreadsheet->getActiveSheet(0)->setCellValue($col++.$i,$row['warehouse_email']);
    $spreadsheet->getActiveSheet(0)->setCellValue($col++.$i,$row['total_value']);
	
    
}
}

$writer = IOFactory::createWriter($spreadsheet, "Xlsx"); //Xls is also possible
// $writer->save("my_excel_file.xlsx");
$writer->save('php://output');

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