完美解決phpexcel導出到xls文件出現亂碼的問題

解決方法如下所示：

<?php
include 'global.php';
$ids = $_GET['ids'];

$sql = "select * from crm_cost_end where id in ( {$ids} )";
$result = $db->findAll($sql);
//echo $result[1]['sn'];

//創建一個excel對象
$objPHPExcel = new PHPExcel();
// Set properties 

$objPHPExcel->getProperties()->setCreator("ctos")
    ->setLastModifiedBy("ctos")
    ->setTitle("Office 2007 XLSX Test Document")
    ->setSubject("Office 2007 XLSX Test Document")
    ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
    ->setKeywords("office 2007 openxml php")
    ->setCategory("Test result file");

//set width 
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(8);
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(10);
$objPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(25);
$objPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(12);
$objPHPExcel->getActiveSheet()->getColumnDimension('E')->setWidth(50);
$objPHPExcel->getActiveSheet()->getColumnDimension('F')->setWidth(10);
$objPHPExcel->getActiveSheet()->getColumnDimension('G')->setWidth(12);
$objPHPExcel->getActiveSheet()->getColumnDimension('H')->setWidth(12);
$objPHPExcel->getActiveSheet()->getColumnDimension('I')->setWidth(12);
$objPHPExcel->getActiveSheet()->getColumnDimension('J')->setWidth(30);

//設置行高度 
$objPHPExcel->getActiveSheet()->getRowDimension('1')->setRowHeight(22);

$objPHPExcel->getActiveSheet()->getRowDimension('2')->setRowHeight(20);

//set font size bold 
$objPHPExcel->getActiveSheet()->getDefaultStyle()->getFont()->setSize(10);
$objPHPExcel->getActiveSheet()->getStyle('A2:J2')->getFont()->setBold(true);

$objPHPExcel->getActiveSheet()->getStyle('A2:J2')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('A2:J2')->getBorders()->getAllBorders()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

//設置水平居中 
$objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_LEFT);
$objPHPExcel->getActiveSheet()->getStyle('A')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('B')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('D')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('F')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('G')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('H')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('I')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

// 
$objPHPExcel->getActiveSheet()->mergeCells('A1:J1');

// set table header content 
$objPHPExcel->setActiveSheetIndex(0)
    ->setCellValue('A1', '訂單數據匯總 
在header() 前面加上ob_end_clean() 函數，清除緩沖區, 這樣就不會亂碼了!
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