PHP导出excel信息表格

//导出表格
public function get_exel($fileName,$headArr,$list)
{
//导入PHPExcel类库，因为PHPExcel没有用命名空间，只能import导入
import("Org.Util.PHPExcel");
import("Org.Util.PHPExcel.Writer.Excel5");
import("Org.Util.PHPExcel.IOFactory.php");

$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
$key = ord("A");
//print_r($headArr);exit;
foreach($headArr as $v){
$colum = chr($key);
$objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $v);
$objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $v);
$key += 1;
    }
$column = 2;
$objActSheet = $objPHPExcel->getActiveSheet();
foreach($list 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);
$objPHPExcel->setActiveSheetIndex(0);
ob_end_clean();//清除缓冲区,避免乱码
header('Content-Type: application/vnd.ms-excel');
header("Content-Disposition: attachment;filename=\"$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;
}