thinkphp5使用PHPExcel导出，导入Excel数据

    /** 
     * 地址:https://github.com/PHPOffice/PHPExcel    下载PHPExcel，下载后只需要Classes目录下的文件即可。
     * 数据导出 
     * @param array $title   标题行名称 
     * @param array $data   导出数据 
     * @param string $fileName 文件名 
     * @param string $savePath 保存路径 
     * @param $type   是否下载  false--保存   true--下载 
     * @return string   返回文件全路径 
     */ 
    function exportExcel($title=array(), $data=array(), $fileName=‘‘,$sheet=‘‘, $savePath=‘./‘, $isDown=false){  
        Loader::import(‘phpexcel.PHPExcel‘);
        Loader::import(‘phpexcel.PHPExcel.IOFactory‘);
        $obj = new \PHPExcel();  
      
        //横向单元格标识  
        $cellName = array(‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘, ‘G‘, ‘H‘, ‘I‘, ‘J‘, ‘K‘, ‘L‘, ‘M‘, ‘N‘, ‘O‘, ‘P‘, ‘Q‘, ‘R‘, ‘S‘, ‘T‘, ‘U‘, ‘V‘, ‘W‘, ‘X‘, ‘Y‘, ‘Z‘, ‘AA‘, ‘AB‘, ‘AC‘, ‘AD‘, ‘AE‘, ‘AF‘, ‘AG‘, ‘AH‘, ‘AI‘, ‘AJ‘, ‘AK‘, ‘AL‘, ‘AM‘, ‘AN‘, ‘AO‘, ‘AP‘, ‘AQ‘, ‘AR‘, ‘AS‘, ‘AT‘, ‘AU‘, ‘AV‘, ‘AW‘, ‘AX‘, ‘AY‘, ‘AZ‘);  
          
        $obj->getActiveSheet(0)->setTitle($sheet);   //设置sheet名称  
        $_row = 1;   //设置纵向单元格标识  
        if($title){  
            $_cnt = count($title);  
            // $obj->getActiveSheet(0)->mergeCells(‘A‘.$_row.‘:‘.$cellName[$_cnt-1].$_row);   //合并单元格  
            // $obj->setActiveSheetIndex(0)->setCellValue(‘A‘.$_row, ‘数据导出：‘.date(‘Y-m-d H:i:s‘));  //设置合并后的单元格内容  
            // $_row++;  
            $i = 0;  
            foreach($title AS $v){   //设置列标题  
                $obj->setActiveSheetIndex(0)->setCellValue($cellName[$i].$_row, $v);  
                $i++;  
            }  
            $_row++;  
        }  
      
        //填写数据  
        if($data){  
            $i = 0;  
            foreach($data AS $_v){  
                $j = 0;  
                foreach($_v AS $_cell){  
                    $obj->getActiveSheet(0)->setCellValue($cellName[$j] . ($i+$_row), $_cell);  
                    $j++;  
                }  
                $i++;  
            }  
        }  
          
        //文件名处理  
        if(!$fileName){  
            $fileName = uniqid(time(),true);  
        }  
      
        $objWrite = \PHPExcel_IOFactory::createWriter($obj, ‘Excel2007‘);  
        

        if($isDown){   //网页下载  
            header(‘pragma:public‘);  
            header("Content-Disposition:attachment;filename=$fileName.xls");  
            $objWrite->save(‘php://output‘);exit;  
        }  
      
        $_fileName = iconv("utf-8", "gb2312", $fileName);   //转码  
        $_savePath = $savePath.$_fileName.‘.xlsx‘;  
        $objWrite->save($_savePath);  
      
        return $savePath.$fileName.‘.xlsx‘;  
    }  

        /** 
     * 地址:https://github.com/PHPOffice/PHPExcel
     * 数据导入 
     * @param string $file excel文件 
     * @param string $sheet 
     */ 
    function importExecl($file=‘‘, $sheet=0){  
        $file = iconv("utf-8", "gb2312", $file);   //转码  
        if(empty($file) OR !file_exists($file)) {  
            die(‘file not exists!‘);  
        }  
        Loader::import(‘phpexcel.PHPExcel‘);
        $objRead = new \PHPExcel_Reader_Excel2007();   //建立reader对象  
        var_dump($objRead);
        die;
        if(!$objRead->canRead($file)){  
            $objRead = new \PHPExcel_Reader_Excel5();  
            if(!$objRead->canRead($file)){  
                die(‘No Excel!‘);  
            }  
        }  
      
        $cellName = array(‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘, ‘G‘, ‘H‘, ‘I‘, ‘J‘, ‘K‘, ‘L‘, ‘M‘, ‘N‘, ‘O‘, ‘P‘, ‘Q‘, ‘R‘, ‘S‘, ‘T‘, ‘U‘, ‘V‘, ‘W‘, ‘X‘, ‘Y‘, ‘Z‘, ‘AA‘, ‘AB‘, ‘AC‘, ‘AD‘, ‘AE‘, ‘AF‘, ‘AG‘, ‘AH‘, ‘AI‘, ‘AJ‘, ‘AK‘, ‘AL‘, ‘AM‘, ‘AN‘, ‘AO‘, ‘AP‘, ‘AQ‘, ‘AR‘, ‘AS‘, ‘AT‘, ‘AU‘, ‘AV‘, ‘AW‘, ‘AX‘, ‘AY‘, ‘AZ‘);  
      
        $obj = $objRead->load($file);  //建立excel对象  
        $currSheet = $obj->getSheet($sheet);   //获取指定的sheet表  
        $columnH = $currSheet->getHighestColumn();   //取得最大的列号  
        $columnCnt = array_search($columnH, $cellName);  
        $rowCnt = $currSheet->getHighestRow();   //获取总行数  
        $data = array();  
        for($_row=1; $_row<=$rowCnt; $_row++){  //读取内容  
            for($_column=0; $_column<=$columnCnt; $_column++){  
                $cellId = $cellName[$_column].$_row;  
                $cellValue = $currSheet->getCell($cellId)->getValue();  
                 //$cellValue = $currSheet->getCell($cellId)->getCalculatedValue();  #获取公式计算的值  
                if($cellValue instanceof PHPExcel_RichText){   //富文本转换字符串  
                    $cellValue = $cellValue->__toString();  
                }  
      
                $data[$_row][$cellName[$_column]] = $cellValue;  
            }  
        }  
        return $data;  
    }