ecxel导入数据也是一个比较常用的功能，他是怎么来实现的呢，下边带你一步步的看

我这里是用的TP的框架
首先需要引入文件，再获取文件名判断文件的类型，然后把表格数据变为数组就可以了，最后就是导入数据了，到此完成。

看代码吧：

        public function excel(){
           if (request()->isPost()) {
                       //首先引入文件
                        Loader::import('PHPExcel.PHPExcel');
                       Loader::import('PHPExcel.PHPExcel.PHPExcel_IOFactory');
                       Loader::import('PHPExcel.PHPExcel.PHPExcel_Cell');
                       //实例化PHPExcel
                       $objPHPExcel = new PHPExcel();
                       $file = request()->file('excel');
                       if ($file) {
                           $file_types = explode(".", $_FILES ['excel'] ['name']); // ["name"] => string(25) "excel文件名.xls"
                           $file_type = $file_types [count($file_types) - 1];//xls后缀
                           $file_name = $file_types [count($file_types) - 2];//xls去后缀的文件名
                           /*判别是不是.xls文件，判别是不是excel文件*/
                           if (strtolower($file_type) != "xls" && strtolower($file_type) != "xlsx") {
                               echo '不是Excel文件，重新上传';
                               die;
                           }
                           $info = $file->rule('uniqid')->move(ROOT_PATH . 'public' . DS . 'excel');//上传位置
                           $path = ROOT_PATH . 'public' . DS . 'excel' . DS;
                           $file_path = $path . $info->getSaveName();//上传后的EXCEL路径
                          //获取上传的excel表格的数据，形成数组
                           $re = $this->actionRead($file_path, 'utf-8');
           
                          /*file_put_contents('pro.txt', print_r($re,true));die;*/
                           array_splice($re, 1, 0);
                           unset($re[0]);
                           /*将数组的键改为自定义名称*/
                           $keys = array('tittle', 'one' ,'two','three','four','five','six','type','answer','parent');
                         
                           foreach ($re as $i => $vals) {
                               $re[$i] = array_combine($keys, $vals);
                           }
                            //遍历数组写入数据库
                           for ($i = 1; $i < count($re)+1; $i++) {
                               $data = $re[$i];
                               $res = db('list')->insert($data);
                           }
                           $this->success("导入成功");
                       }
                   }
        }
        public function actionRead($filename, $encode = 'utf-8')
        {
    
            //如果是xlsx
           $objReader = PHPExcel_IOFactory::createReader('Excel2007');
            /*//如果是xls
            $objReader = PHPExcel_IOFactory::createReader('Excel5');*/
            $objReader->setReadDataOnly(true);
            $objPHPExcel = $objReader->load($filename);
            $objWorksheet = $objPHPExcel->getActiveSheet();
            $highestRow = $objWorksheet->getHighestRow();
             $highestColumn = $objWorksheet->getHighestColumn();
             $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn);
             $excelData = array();
             for($row = 1; $row <= $highestRow; $row++)
             {
             for ($col = 0; $col < $highestColumnIndex; $col++)
             {
             $excelData[$row][]=(string)$objWorksheet->getCellByColumnAndRow($col, $row)->getValue();
             }
             }
             return $excelData;
        }