ThinkPHP使用PHPSpreadsheet数据的写入和读取Excel

1、使用composer安装

composer require phpoffice/phpspreadsheet

2、写入Excel

common(应用公共文件，app/common.php)，方便调用：

use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Spreadsheet;

function exportData($head, $body, $name = '', $version = '2007',$title='Export Data')
{
    try {
        // 输出 Excel 文件头
        if(empty($name)){
            $name =date('Y-m-d-H-i-s');
        }

        $spreadsheet   = new Spreadsheet();
        $sheetPHPExcel = $spreadsheet->setActiveSheetIndex(0);
        $char_index    = range('A', 'Z');//数组，從A-Z
        //处理超过26列
        $a = 'A';
        foreach ($char_index as $item){
            $char_index[] = $a . $item;
        }


        // Excel 表格头
        foreach ($head as $key => $val) {
            $sheetPHPExcel->setCellValue("{$char_index[$key]}1", $val);
        }

        $spreadsheet->getActiveSheet()->setTitle($title);

        // Excel body 部分
        foreach ($body as $key => $val) {
            $row = $key + 2;
            $col = 0;
            foreach ($val as $k => $v) {
                $spreadsheet->getActiveSheet()->setCellValue("{$char_index[$col]}{$row}", $v);
                $col++;
            }
        }

        // 版本差异信息
        $version_opt = [
            '2007' => [
                'mime'       => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                'ext'        => '.xlsx',
                'write_type' => 'Xlsx',
            ],
            '2003' => ['mime'       => 'application/vnd.ms-excel',
                'ext'        => '.xls',
                'write_type' => 'Xls',
            ],
            'pdf'  => ['mime'       => 'application/pdf',
                'ext'        => '.pdf',
                'write_type' => 'PDF',
            ],
            'ods'  => ['mime'       => 'application/vnd.oasis.opendocument.spreadsheet',
                'ext'        => '.ods',
                'write_type' => 'OpenDocument',
            ],
        ];

        header('Content-Type: ' . $version_opt[$version]['mime']);
        header('Content-Disposition: attachment;filename="' . $name . $version_opt[$version]['ext'] . '"');
        header('Cache-Control: max-age=0');

        $objWriter = IOFactory::createWriter($spreadsheet, 'Xlsx');
        return $objWriter->save('php://output');
    } catch (Exception $e) {
        return $e->getMessage();
    }
}

Index控制器：

    public function export(Article $model)
    {
        $header = ['編號', '标题', '内容'];

        $body = [];
        $data = $model::select();
//        halt($data);
        foreach ($data as $item) {
            $record = [];
            $record['id'] = $item->id;
            $record['title'] = $item->title;
            $record['content'] = $item->content;
            $body[] = $record;
        }
        return exportData($header, $body, 'Article_' . date('YmdHis'));
    }

3、读取Excel

HTML，form里有type='text'和type='file'

<script src="http://localhost/think/public/static/js/jquery-1.11.1.min.js"></script>
<form action="" enctype="multipart/form-data" id="document-form" method="post">
    <input type="text" name="id" id="id" value="11"/>
    <input type="file" name="file" id="file"/> <br><br><br>
</form>
<input type="submit" id="submit" value="上传" />

如果直接使用serialize，是獲取不了type="file"的的數據，只能获取type='text'的数据：

var formData= $("#document-form").serialize();

我们可以使用formData，这样就可以获取type="file"和type='text'的数据

//通过FormData构造函数创建一个空对象
var formData = new FormData();
//可以通过append()方法来追加数据
formData.append("file", $("#file")[0].files[0]);
formData.append("id", $("#id").val());

如果form里有很多个type="file"和type='text'，一个个添加到formData太麻烦；但可以通过循环全部添加：

//$.fn.serializeFiles()=function(){}的调用把方法扩展到了对象的prototype上，所以实例化一个jQuery对象的时候，它就具有了这些方法。
    $.fn.serializeFiles = function() {
        var form = $(this),formData = new FormData();//通过FormData构造函数创建一个空对象
        var formParams = form.serializeArray();//带有name和value的json，比如{name: "username1", value: "a"}

        //通过append()方法来追加数据，type="file"
        $.each(form.find('input[type="file"]'), function(i, tag) {
            $.each($(tag)[0].files, function(i, file) {
                formData.append(tag.name, file);
            });
        });

        //通过append()方法来追加数据，type="text"
        $.each(formParams, function(i, val) {
            formData.append(val.name, val.value);
        });

        return formData;
    };



    $("#submit").click(function () {
        var formData= $("#document-form").serializeFiles();

        $.ajax({
            url: "{:url('importE')}",
            data        : formData,
            cache       : false,
            type        : 'POST',
            processData : false, // 使数据不做处理
            contentType : false, // 不要设置Content-Type请求头
            success: function(res){
                //成功之後
            }
        })
    })

注：ajax里processData和contentType都设置false，否则报错

Index控制器：

    //導入Excel
    public function importE(){
        /*$spreadsheet = new Spreadsheet();
        $spreadsheet = \PhpOffice\PhpSpreadsheet\IOFactory::load($file['tmp_name']);//加载excel
        $sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);//读取excel文件内容
        halt($sheetData);*/

        // 获取活动工作簿
        // 创建读操作
        $file = $_FILES['file'];
        $param = $this->request->param();
        halt($file);
        $reader = IOFactory::createReader('Xlsx');

        // 打开文件 载入excel表格
        $spreadsheet = $reader->load($file['tmp_name']);
        $sheet = $spreadsheet->getActiveSheet();

        // 获取内容的最大列 如:D
        $highest = $sheet->getHighestColumn();

        // 获取内容的最大行 如:4
        $row = $sheet->getHighestRow();

        $data = [];// 用于存储表格数据
        for ($i = 2; $i <= $row; $i++) {
            // 獲取行數的數據
            $rowData = [
                "title" => $sheet->getCellByColumnAndRow(2, $i)->getValue(),
                "content" => $sheet->getCellByColumnAndRow(3, $i)->getValue(),
            ];
            $data[] = $rowData;
        }

        //直接添加
        Article::insertAll($data);


        //或者把数组转换成JSON格式輸出
        $sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);
        return json($sheetData);
    }

我这篇文章只是简单的介绍，如果想看详解请看下面这篇文章，各种属性和方法都有解释：

PHP使用PhpSpreadsheet操作Excel实例详解