How to export array to excel in php

During the development process, we often need to export data into Excel files to facilitate users to download and save. Php, as a popular server-side programming language, can also easily implement this function. This article will introduce how to use Php to export an array into an Excel file.

1. Preparation

Before starting coding, you first need to ensure that PHPExcel, the open source Php Excel processing library, has been installed on the server. If you have not installed it yet, you can go to the PHPExcel official website to download it. It is very simple to use. You only need to copy the PHPExcel library file to your project folder.

2. Create an Excel file and write data

Creating a new Excel file and writing data needs to be achieved through the PHPExcel object in the PHPExcel library. The easy-to-use PHPExcel object provides several useful functions so that you can define various properties of Excel files.

For example, if we want to create a new Excel file and define its column width and row height to better display the data, we can use the following code:

//创建PHPExcel对象
$objPHPExcel = new PHPExcel();

//设置列宽
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(30);

//设置行高
$objPHPExcel->getActiveSheet()->getRowDimension(1)->setRowHeight(30);
$objPHPExcel->getActiveSheet()->getRowDimension(2)->setRowHeight(20);

Setup completed After setting the properties of the Excel file, we can write data to the Excel file. To demonstrate exporting array data to Excel, we can assume that there is an array data as shown below:

$data = array(
    array('姓名', '年龄', '性别'),
    array('张三', '18', '男'),
    array('李四', '20', '女'),
    array('王五', '22', '男'),
);

To write this array data to an Excel file, you can use the following code:

//写入数据到工作表1
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->fromArray($data, NULL, 'A1');

The above code Write the array data $data into worksheet 1 of the Excel file, starting from row 1 and column 1. $null means that PhpExcel will automatically adjust the format of the cells according to the entered data.

3. Export Excel file

After writing the array data into the Excel file, the last step is to export the generated Excel file locally. To do this we need to set some response headers.

First, we need to set the file name of the received Excel file so that users can better identify the content. Next, we need to tell the browser to pass an Excel file to the user so that the browser sees it as an Excel file rather than a plain text file.

The code to implement the above functions is as follows:

//设置响应头信息
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="测试导出.xlsx"');
header('Cache-Control: max-age=0');

//创建Excel文件
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');

//导出Excel文件到本地
$objWriter->save('php://output');

The above code tells the browser to receive an Excel file by setting relevant response header information. We then create the PHPExcel_IOFactory object and use it to write data to the file and save the file.

Finally, export the Excel file to the client by calling the $objWriter->save('php://output') function.

4. Complete code

Combining the above code parts can realize the function of exporting array data into Excel files.

The complete code is as follows:

//引入PHPExcel库文件
require_once 'PHPExcel.php';

//创建PHPExcel对象
$objPHPExcel = new PHPExcel();

//设置列宽
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(30);

//设置行高
$objPHPExcel->getActiveSheet()->getRowDimension(1)->setRowHeight(30);
$objPHPExcel->getActiveSheet()->getRowDimension(2)->setRowHeight(20);

//定义数据
$data = array(
    array('姓名', '年龄', '性别'),
    array('张三', '18', '男'),
    array('李四', '20', '女'),
    array('王五', '22', '男'),
);

//将数组写入Excel文件
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->fromArray($data, NULL, 'A1');

//设置响应头信息
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="测试导出.xlsx"');
header('Cache-Control: max-age=0');

//创建Excel文件
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');

//导出Excel文件到本地
$objWriter->save('php://output');

The above code uses the PHPExcel library to create an Excel object, writes the data to Excel, and finally exports the Excel file to the client.

5. Summary

Php is a popular server-side programming language. Combined with the PHPExcel library, array data can be easily exported into Excel files and provided to users for downloading and saving. In the above example, we introduced how to use the PHPExcel library to create Excel workbooks, write data and export files. We hope it will be helpful to your Excel export in Php development.

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