phpexcel导出数据库成excel文件

<?php  
error_reporting(E_ALL);  
date_default_timezone_set('Europe/London');  
/** PHPExcel */  
require_once '../phpclass/PHPExcel.php';  
  
// Create new PHPExcel object  
$objPHPExcel = new PHPExcel();  
  
// Set properties  
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw")  
                             ->setLastModifiedBy("Maarten Balliauw")  
                             ->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");  
$objPHPExcel->getActiveSheet()->mergeCells('A1:G1');  
$objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);  
$objPHPExcel->getActiveSheet()->getColumnDimension('C')->setAutoSize(true);  
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);  
$objPHPExcel->getActiveSheet()->getColumnDimension('E')->setWidth(20);  
  
// Add some data  
  
  
$objPHPExcel->setActiveSheetIndex(0)  
            ->setCellValue('A1', '通讯录')  
            ->setCellValue('A2', '账号')  
            ->setCellValue('B2', '姓名')  
            ->setCellValue('C2', '手机')  
            ->setCellValue('D2', '电话')  
            ->setCellValue('E2', '科室')  
            ->setCellValue('F2', '级别')  
            ->setCellValue('G2', '编号');      
  
//数据库连接  
$db = mysql_connect("localhost", "ywcl", "ywcl");  
mysql_select_db("ywcl",$db);  //选择数据库，这里为"ywcl"。  
mysql_query("SET NAMES UTF8"); //设定编码方式为UTF8  
  
$sqlgroups="select * from user order by jibie";  
$resultgroups=mysql_query($sqlgroups);  
    $numrows=mysql_num_rows($resultgroups);  
    if ($numrows>0)  
    {  
        $count=2;  
        while($data=mysql_fetch_array($resultgroups))  
        {  
            $count+=1;  
            $l1="A"."$count";  
            $l2="B"."$count";  
            $l3="C"."$count";  
            $l4="D"."$count";  
            $l5="E"."$count";  
            $l6="F"."$count";  
            $l7="G"."$count";  
            $objPHPExcel->setActiveSheetIndex(0)              
                        ->setCellValue($l1, $data['username'])  
                        ->setCellValue($l2, $data['realname'])  
                        ->setCellValue($l3, $data['mobile'])  
                        ->setCellValue($l4, $data['bgdh'])  
                        ->setCellValue($l5, $data['keshi'])  
                        ->setCellValue($l6, $data['jibie'])  
                        ->setCellValue($l7, $data['bianhao']);  
        }  
    }          
  
// Rename sheet  
$objPHPExcel->getActiveSheet()->setTitle('通讯录');  
  
  
// 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)  
header('Content-Type: application/vnd.ms-excel');  
header('Content-Disposition: attachment;filename="通讯录.xls"');  
header('Cache-Control: max-age=0');  
  
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');  
$objWriter->save('php://output');  
exit;  
?>