ThinkPHP5使用PHPExcel实现数据导出功能

1、将PHPExcel类库文件夹放入extend目录下

2、导出功能实现

 public function download(){
     if(request()->isPost()){
         $val = input('dval','');
         if(!empty($val)){
             $where['phone'] = $val;
         }
         $list = db("withdraw")->where($where)->order('id desc')->select();
         if(empty($list)){
             $this->error('暂无数据打印');
         }
         $data = array();
         foreach ($list as $k=>$value){
             $data[$k]['phone'] = $value['phone'];
             $data[$k]['sl'] = $value['sl'];
             $data[$k]['status'] = $value['status'];
             $data[$k]['createtime'] = date('Y-m-d H:i:s',$value['createtime']);
         }
         foreach ($data as $field=>$v){
             if($field == 'phone'){
                 $headArr[]='手机号';
             }
             if($field == 'sl'){
                 $headArr[]='数量';
             }
             if($field == 'status'){
                 $headArr[]='状态';
             }
             if($field == 'createtime'){
                 $headArr[]='时间';
             }
         }
         $filename="记录";
         return $this->getExcel($filename,$headArr,$data);
     }
 }
 public  function getExcel($fileName,$headArr,$data){
     //导入PHPExcel类库
     require_once(Env::get('root_path') . 'extend/PHPExcel/Classes/PHPExcel.php');
     require_once(Env::get('root_path') . 'extend/PHPExcel/Classes/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
     $key = ord("A");
     foreach($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($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);

     //重命名表
     //$objPHPExcel->getActiveSheet()->setTitle('test');
     //设置活动单指数到第一个表,所以Excel打开这是第一个表
     $objPHPExcel->setActiveSheetIndex(0);
     ob_end_clean();//清除缓冲区,避免乱码
     header('Content-Type: application/vnd.ms-excel');
     header("Content-Disposition: attachment;filename=\"$fileName\"");
     header('Cache-Control: max-age=0');

     $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
     $objWriter->save('php://output'); //文件通过浏览器下载
     exit;
 }