PHPExcel（1）-- 导出功能

PHPExcel导出功能

Web开发的时候，经常会遇到需要将数据库中某些表单导出到excel文件中的问题。我在运用yii框架做web开发过程中，发现有个应用为PHPExcel，该应用能够实现excel文件的导入导出，刚好能够满足需要的要求。一下是自己应用 PHPExcel 做数据导出的记录。

1、首先下载该应用，github链接为：https://github.com/PHPOffice/PHPExcel

2、在 protected/extensions 路径下建立 PHPexcel 目录，将下载的 PHPExcel 文件解压。

3、将解压后的classes目录下所有内容，拷贝放到protected/extensions/PHPexcel 目录下

4、在控制器文件 XXX.Controller.php 中,先引入相关文件

<?php
Yii::import('application.extensions.*');
require_once('PHPExcel/PHPExcel.php');
require_once 'PHPExcel/PHPExcel/Writer/Excel5.php'; // 用于其他低版本xls
require_once 'PHPExcel/PHPExcel/Writer/Excel2007.php'; // 用于 excel-2007 格式
...

5、编写方法Download（以下是自己开发过程中的部分代码）

public function actionDownload($option)
    {
        // Create new PHPExcel object
        $objPHPExcel = new PHPExcel();

        // Set properties
        $objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
            ->setLastModifiedBy("Maarten Balliauw")
            ->setTitle("Office 2007 XLSX Test Document")
            ->setSubject("Office 2007 XLSX Test Document")
            ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
            ->setKeywords("office 2007 openxml php")
            ->setCategory("Test result file");
        //$objPHPExcel->getActiveSheet()->mergeCells('A1:G1');
        //$objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        //$objPHPExcel->getActiveSheet()->getColumnDimension('C')->setAutoSize(true);
        //$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);
        //$objPHPExcel->getActiveSheet()->getColumnDimension('E')->setWidth(20);
        $subjects = Subject::model()->findAll("headteacher=:name", array(":name" => Yii::app()->session['name'])); //找出相关课程组
        foreach ($subjects as $item1) {
            $criteria = new CDbCriteria; // 创建CDbCriteria对象
            $criteria->addCondition("suid = :id");
            $criteria->params[':id'] = $item1->id;
            $criteria->select = '*';
            //按照返回参数搜索选题信息
            if ($option == 1) {
                $criteria->order = 'Cid';
                //$criteria -> limit = 3;
                $b = Selectcourse::model()->findAll($criteria);
                $objPHPExcel->setActiveSheetIndex(0)
                    ->setCellValue('A1', '选题情况')
                    ->setCellValue('A2', '学生ID')
                    ->setCellValue('B2', '学生姓名')
                    ->setCellValue('C2', '课程名称')
                    ->setCellValue('D2', '题目名称')
                    ->setCellValue('E2', '选题时间');

                $count = 2;
                foreach ($b as $item2) {
                    $count += 1;
                    $l1 = "A" . "$count";
                    $l2 = "B" . "$count";
                    $l3 = "C" . "$count";
                    $l4 = "D" . "$count";
                    $l5 = "E" . "$count";

                    $objPHPExcel->setActiveSheetIndex(0)
                        ->setCellValue($l1, $item2->sid)
                        ->setCellValue($l2, Student::model()->find(array('condition' => 'id=' . $item2->sid,))->name)
                        ->setCellValue($l3, $item1->name)
                        ->setCellValue($l4, Course::model()->find(array('condition' => 'Cid=' . $item2->cid,))->Cname)
                        ->setCellValue($l5, $item2->apply_time);

                }

            }
            if ($option == 2) {
                $criteria->order = 'sid';
                //$criteria -> limit = 3;
                $b = Selectcourse::model()->findAll($criteria);
                $objPHPExcel->setActiveSheetIndex(0)
                    ->setCellValue('A1', '选题情况')
                    ->setCellValue('A2', '学生ID')
                    ->setCellValue('B2', '学生姓名')
                    ->setCellValue('C2', '课程名称')
                    ->setCellValue('D2', '题目名称')
                    ->setCellValue('E2', '选题时间');

                $count = 2;
                foreach ($b as $item2) {
                    $count += 1;
                    $l1 = "A" . "$count";
                    $l2 = "B" . "$count";
                    $l3 = "C" . "$count";
                    $l4 = "D" . "$count";
                    $l5 = "E" . "$count";

                    $objPHPExcel->setActiveSheetIndex(0)
                        ->setCellValue($l1, $item2->sid)
                        ->setCellValue($l2, Student::model()->find(array('condition' => 'id=' . $item2->sid,))->name)
                        ->setCellValue($l3, $item1->name)
                        ->setCellValue($l4, Course::model()->find(array('condition' => 'Cid=' . $item2->cid,))->Cname)
                        ->setCellValue($l5, $item2->apply_time);

                }
            }

        }
        // Rename sheet
        $objPHPExcel->getActiveSheet()->setTitle('学生选题信息');

        // Set active sheet index to the first sheet, so Excel opens this as the first sheet
        $objPHPExcel->setActiveSheetIndex(0);

        // Redirect output to a client’s web browser (Excel5)
        header('Content-Type: application/vnd.ms-excel');
        header('Content-Disposition: attachment;filename="学生选题信息.xls"');
        header('Cache-Control: max-age=0');

        $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
        $objWriter->save('php://output');
    }

6、不要忘了在用户访问控制里面添加动作download

public function accessRules(){
array('allow', // allow admin user to perform 'admin' and 'delete' actions
                'actions' => array('download'),
                'roles' => array('...'),
            ),
}

7、在对应的view文件中，编写链接

<?php echo CHtml::link(CHtml::encode("》导出Excel表格"), array('download','option' => $option)); ?>

8、完成将数据以excel文件导出。

以上是自己对PHPExcel的一个应用，因为是初次接触，用的也不熟练，难免有一些不当，望大家指出，共同进步！