TP 上传excel

 <?php
 class ExcelAction extends Action{
    public function read($filename,$encode='utf-8'){
        vendor('Excel.PHPExcel');
        $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; 
        
    } 
    public function excel(){
        $this->display();    
    }
    public function runexcel(){
        if (! empty ( $_FILES ['file_stu'] ['name'] )) 
         {
            $tmp_file = $_FILES ['file_stu'] ['tmp_name'];
            $file_types = explode ( ".", $_FILES ['file_stu'] ['name'] );
            $file_type = $file_types [count ( $file_types ) - 1];
             /*判别是不是.xls文件，判别是不是excel文件*/
             if (strtolower ( $file_type ) != "xls")              
            {
                  $this->error ( '不是Excel文件，重新上传' );
             }
            /*设置上传路径*/
             $savePath = '/';
            /*以时间来命名上传的文件*/
             $str = date ( 'Ymdhis' ); 
             $file_name = $str . "." . $file_type;
             /*是否上传成功*/
             if (! copy ( $tmp_file, $savePath . $file_name )) 
              {
                  $this->error ( '上传失败' );
              }
            /*
        
               *对上传的Excel数据进行处理生成编程数据,这个函数会在下面第三步的ExcelToArray类中
        
              注意：这里调用执行了第三步类里面的read函数，把Excel转化为数组并返回给$res,再进行数据库写入
        
            */
          $res = $this->read ( $savePath . $file_name );
           /*
        
                重要代码 解决Thinkphp M、D方法不能调用的问题   
        
                如果在thinkphp中遇到M 、D方法失效时就加入下面一句代码
        
            */
           spl_autoload_register ( array ('Think', 'autoload' ) );
        
           /*对生成的数组进行数据库的写入*/
           foreach ( $res as $k => $v ) 
           {
               if ($k != 0) 
              {
                  $data ['khmc'] = $v[0];
                  $data ['lxdz'] = $v[6];
                  $data ['khdh'] = $v[4];
                  $result = M ( 'khgl' )->add ( $data );
                 if (! $result) 
                 {
                      $this->error ( '导入数据库失败' );
                  }
              }
           }
        }
    }
 }
 ?>