【tp5.1】composer安装PHPExcel以及导入导出Excel

一、安装PHPExcel

1.下载：PHPExcel  https://github.com/PHPOffice/PHPExcel

2.解压后：Classes文件夹改名为PHPExcel 

3.把文件夹PHPExcel 放到根目录vendor文件夹下

二、控制器

1.调用PHPExcel

use PHPExcel_IOFactory;
use PHPExcel;

2.导入

//    导入每日流水
    public function posImport(){
        header("content-type:text/html;charset=utf-8");
        //上传excel文件
        $file = request()->file('excel');
        //将文件保存到public/uploads目录下面
        $info = $file->validate(['size'=>1048576,'ext'=>'xls,xlsx'])->move( './uploads');
        if($info){
            //获取上传到后台的文件名
            $fileName = $info->getSaveName();
            //获取文件路径
            $filePath = Env::get('root_path').'public'.DIRECTORY_SEPARATOR.'uploads'.DIRECTORY_SEPARATOR.$fileName;
            //获取文件后缀
            $suffix = $info->getExtension();
            //判断哪种类型
            if($suffix=="xlsx"){
                $reader = PHPExcel_IOFactory::createReader('Excel2007');
            }else{
                $reader = PHPExcel_IOFactory::createReader('Excel5');
            }
        }else{
            $this->error('文件过大或格式不正确导致上传失败-_-!');
        }
        //载入excel文件
        $excel = $reader->load("$filePath",$encode = 'utf-8');
        //读取第一张表
        $sheet = $excel->getSheet(0);
        //获取总行数
        $row_num = $sheet->getHighestRow();
        //获取总列数
        $col_num = $sheet->getHighestColumn();
        $data = []; //数组形式获取表格数据
        for ($i = 2; $i <= $row_num; $i ++) {
            $data[$i]['code']  = $sheet->getCell("A".$i)->getValue();
            $data[$i]['last_code']  = substr($sheet->getCell("A".$i)->getValue(),-6);
            $time = date('Y-m-d H:i',PHPExcel_Shared_Date::ExcelToPHP($sheet->getCell("B".$i)->getValue()));
            $data[$i]['time'] = strtotime($time);
            //将数据保存到数据库
        }
        $res = Db::name('pos_code')->insertAll($data);
        if($res){
            return redirect('/admin/pos/posCodeLog');
        }else{
            $return = [
                'code'  =>  0,
                'msg'   =>  '提交失败，请刷新重试'
            ];
            return json($return);
        }
    }

3.导出

//    导出excel
    private function outExcel($data){
        $objExcel = new PHPExcel();
        $objWriter = PHPExcel_IOFactory::createWriter($objExcel, 'Excel5');
        $objActSheet = $objExcel->getActiveSheet(0);
        $objActSheet->setTitle('领取报表');//设置excel的标题
        $objActSheet->setCellValue('A1','用户id');
        $objActSheet->setCellValue('B1','红包金额（元）');
        $objActSheet->setCellValue('C1','时间');
        $objActSheet->setCellValue('D1','发放状态');

        $baseRow = 2; //数据从N-1行开始往下输出 这里是避免头信息被覆盖
        foreach ( $data as $r => $d ) {
            $i = $baseRow + $r;
            $objExcel->getActiveSheet()->setCellValue('A'.$i,$d['user_id']);
            $objExcel->getActiveSheet()->setCellValue('B'.$i,$d['price']);
            $objExcel->getActiveSheet()->setCellValue('C'.$i,$d['create_time']);
            $objExcel->getActiveSheet()->setCellValue('D'.$i,$d['status'] == 1 ? '成功' : '失败');
        }
        $objExcel->setActiveSheetIndex(0);
        //4、输出
        $objExcel->setActiveSheetIndex();
        header('Content-Type: applicationnd.ms-excel');
        $time=date('Y-m-d');
        header("Content-Disposition: attachment;filename=领取报表$time.xls");
        header('Cache-Control: max-age=0');
        $objWriter->save('php://output');
    }