实例两则：phpexcel导出到xls文件,附带解决乱码方法
链接： http://www.usity.org/1902.html
实例一：
<?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'];
//创建一个excel对象
$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);
//设置行高度
$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);
//设置水平居中
$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
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A1', '订单数据汇总 时间:' . date('Y-m-d H:i:s'))
->setCellValue('A2', '订单ID')
->setCellValue('B2', '下单人')
->setCellValue('C2', '客户名称')
->setCellValue('D2', '下单时间')
->setCellValue('E2', '需求机型')
->setCellValue('F2', '需求数量')
->setCellValue('G2', '需求交期')
->setCellValue('H2', '确认BOM料号')
->setCellValue('I2', 'PMC确认交期')
->setCellValue('J2', 'PMC交货备注');
// Miscellaneous glyphs, UTF-8
for ($i = 0; $i < count($result) - 1; $i++) {
$objPHPExcel->getActiveSheet(0)->setCellValue('A' . ($i + 3), $result[$i]['id']);
$objPHPExcel->getActiveSheet(0)->setCellValue('B' . ($i + 3), $result[$i]['realname']);
$objPHPExcel->getActiveSheet(0)->setCellValue('C' . ($i + 3), $result[$i]['customer_name']);
$objPHPExcel->getActiveSheet(0)->setCellValue('D' . ($i + 3), $OrdersData[$i]['create_time']);
$objPHPExcel->getActiveSheet(0)->setCellValue('E' . ($i + 3), $result[$i]['require_product']);
$objPHPExcel->getActiveSheet(0)->setCellValue('F' . ($i + 3), $result[$i]['require_count']);
$objPHPExcel->getActiveSheet(0)->setCellValue('G' . ($i + 3), $result[$i]['require_time']);
$objPHPExcel->getActiveSheet(0)->setCellValue('H' . ($i + 3), $result[$i]['product_bom_encoding']);
$objPHPExcel->getActiveSheet(0)->setCellValue('I' . ($i + 3), $result[$i]['delivery_time']);
$objPHPExcel->getActiveSheet(0)->setCellValue('J' . ($i + 3), $result[$i]['delivery_memo']);
$objPHPExcel->getActiveSheet()->getStyle('A' . ($i + 3) . ':J' . ($i + 3))->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);
$objPHPExcel->getActiveSheet()->getStyle('A' . ($i + 3) . ':J' . ($i + 3))->getBorders()->getAllBorders()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getActiveSheet()->getRowDimension($i + 3)->setRowHeight(16);
}
// Rename sheet
$objPHPExcel->getActiveSheet()->setTitle('订单汇总表');
// Set active sheet index to the first sheet, so Excel opens this as the first sheet
$objPHPExcel->setActiveSheetIndex(0);
// Redirect output to a client’s web browser (Excel5)
ob_end_clean();//清除缓冲区,避免乱码
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="订单汇总表(' . date('Ymd-His') . ').xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
?>
实例二：
<?php
require_once 'Classes/PHPExcel.php'; //路径根据自己实际项目的路径进行设置
$objPHPExcel = new PHPExcel(); //创建PHPExcel实例
//下面是对mysql数据库的连接
$conn = mysql_connect("localhost","root","") or die("数据库连接失败！");
mysql_select_db("image",$conn); //连接数据库
mysql_query("set names 'GBK'"); //转换字符编码
$sql = mysql_query("select * from test"); //查询sql语句
/*--------------设置表头信息------------------*/
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A1', 'ID编号')
->setCellValue('B1', '月份')
->setCellValue('C1', '产品一')
->setCellValue('D1', '产品二')
->setCellValue('E1', '产品三');
/*--------------开始从数据库提取信息插入Excel表中------------------*/
$i=2; //定义一个i变量，目的是在循环输出数据是控制行数
while($rs=mysql_fetch_array($sql)){
$rm = iconv("GB2312","UTF-8",$rs[1]); //对字符进行编码将数据库里GB2312的中文字符转换成UTF-8格式
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue("A".$i, $rs[0])
->setCellValue("B".$i, $rm)
->setCellValue("C".$i, $rs[2])
->setCellValue("D".$i, $rs[3])
->setCellValue("E".$i, $rs[4]);
$i++;
}
/*--------------下面是设置其他信息------------------*/
$objPHPExcel->getActiveSheet()->setTitle('Example1'); //设置sheet的名称
$objPHPExcel->setActiveSheetIndex(0); //设置sheet的起始位置
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5'); //通过PHPExcel_IOFactory的写函数将上面数据写出来
$objWriter->save(str_replace('.php', '.xls', __FILE__));
?>
附：phpexcel 官方网站http://phpexcel.codeplex.com/
解决乱码的问题，注意三点，三者统一，绝不会有任何问题：
建议统一用UTF-8编码
1、数据库的编码 UTF8；
2、页面head的编码声明和存储的编码 UTF-8，无ROM；
3、写入文件流的编码和打开软件的默认编码 UTF-8；