excel导出代码：
public function expUser(){
$m = M ('User');
$data = $m->Field('username,pwd,number,prize,lottery,salt,times')->select();//数据查询
//导入PHPExcel类库，因为PHPExcel没有用命名空间，只能inport导入
vendor('PHPExcel');
vendor('PHPExcel.Writer.Excel5');
vendor('PHPExcel.IOFactory.php');
$filename="hd_";//设置表头
$headArr=array("用户名","密码","鳞片数","终极奖励","资格","token","抽奖次数");//设置导出excel的第一行
$this->getExcel($filename,$headArr,$data);
}
//excel导出
private function getExcel($fileName,$headArr,$data){
//对数据进行检验
if(empty($data) || !is_array($data)){
die("data must be a array");
}
//检查文件名
if(empty($fileName)){
exit;
}
$date = date("Y_m_d",time());
$fileName .= "_{$date}.xls";
//创建PHPExcel对象，注意，不能少了\
$objPHPExcel = new \PHPExcel();
$objProps = $objPHPExcel->getProperties();
//设置表头
$key = ord("A");
foreach($headArr as $v){
$colum = chr($key);
$objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $v);
$key += 1;
}
$column = 2;
$objActSheet = $objPHPExcel->getActiveSheet();
foreach($data as $key => $rows){ //行写入
$span = ord("A");
foreach($rows as $keyName=>$value){// 列写入
$j = chr($span);
$objActSheet->setCellValue($j.$column, $value);
$span++;
}
$column++;
}
$fileName = iconv("utf-8", "gb2312", $fileName);
//设置活动单指数到第一个表,所以Excel打开这是第一个表
$objPHPExcel->setActiveSheetIndex(0);
ob_end_clean();
ob_start();
header('Content-Type: application/vnd.ms-excel');
header("Content-Disposition: attachment;filename=\"$fileName\"");
header('Cache-Control: max-age=0');
$objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output'); //文件通过浏览器下载
exit;
}