thinkphp6 整合PhpSpreadsheet 导出数据到excel，加边框

效果图

完整代码：

<?php
namespace app\admin\model;

use think\facade\Db;
use app\common\model\Base;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
use PhpOffice\PhpSpreadsheet\Style\Border;
/**
 * Excel模型
 */
class Excel extends Base{
	// 主键
	protected $pk = 'excelId';	
	// 禁用软删除
	protected $deleteTime = false;
	/**
	 * 导出
	 */
	public function export(){
		$data = $this->select();
		
		$spreadsheet = new Spreadsheet();
		$sheet = $spreadsheet->getActiveSheet();
		$sheet->setCellValue('A1', '标题');
		$sheet->setCellValue('B1', '内容');
		
		/*--------------开始从数据库提取信息插入Excel表中------------------*/
		$i=2;  //定义一个i变量，目的是在循环输出数据是控制行数
		 /*$i = 2,因为第一行是表头，所以写到表格时候只能从第二行开始写。*/
		$count = count($data);  //计算有多少条数据
		for ($i = 2; $i <= $count+1; $i++) {
			$sheet->setCellValue('A' . $i, $data[$i-2]['excelTitle']); 
			$sheet->setCellValue('B' . $i, $data[$i-2]['excelContent']);
		}		
		//样式设置 - 边框
// $styleArray = [
// 	'borders' => [
// 			'outline' => [
// 					'borderStyle' => Border::BORDER_THICK,
// 					'color' => ['argb' => 'FFFF0000'],
// 			],
// 			'inside' => [
// 					'borderStyle' => Border::BORDER_THIN,
// 			]
// 	],
// ];
// 或者
$styleArray = [
	'borders' => [
			'allBorders' => [ // allBorders可以替换成top,left,right,bottom
					'borderStyle' => Border::BORDER_THICK,
					'color' => ['argb' => 'ffff0000'],
			],
	],
];

	$sheet->getStyle('A1:D1')->applyFromArray($styleArray);
		header('Content-Type: application/vnd.ms-excel');
		header('Content-Disposition: attachment;filename="'.'信息'.'.xlsx"');
		header('Cache-Control: max-age=0');
		$writer = new Xlsx($spreadsheet);
		$writer->save('php://output');
		exit;
	}

composer命令安装phpspreadsheet

composer require phpoffice/phpspreadsheet