使用PHP和PhpSpreadsheet处理Excel文件

composer require phpoffice/phpspreadsheet

use PhpOfficePhpSpreadsheetIOFactory;

$reader = IOFactory::createReader('Xlsx'); // 先创建一个Reader对象
$spreadsheet = $reader->load('example.xlsx'); // 载入文件到Spreadsheet对象中

$worksheet = $spreadsheet->getActiveSheet(); // 获取活动工作表

$highestRow = $worksheet->getHighestRow(); // 获取最大行数
$highestColumn = $worksheet->getHighestColumn(); // 获取最大列数

// 从第1行开始遍历每一行
for ($row = 1; $row <= $highestRow; ++$row) {
    // 从A列开始遍历每一列
    for ($col = 'A'; $col <= $highestColumn; ++$col) {
        $cell = $worksheet->getCell($col . $row); // 获取单元格对象
        $value = $cell->getValue(); // 获取单元格值
        echo "$col$row: $value
";
    }
}

use PhpOfficePhpSpreadsheetSpreadsheet;
use PhpOfficePhpSpreadsheetWriterXlsx;

$spreadsheet = new Spreadsheet(); // 创建一个Spreadsheet对象

$worksheet = $spreadsheet->getActiveSheet(); // 获取活动工作表

// 写入数据
$worksheet->setCellValue('A1', '姓名')
          ->setCellValue('B1', '分数')
          ->setCellValue('A2', '张三')
          ->setCellValue('B2', 80)
          ->setCellValue('A3', '李四')
          ->setCellValue('B3', 90);

$writer = new Xlsx($spreadsheet); // 创建一个Writer对象，指定文件类型为“xlsx”

$writer->save('example.xlsx'); // 保存Excel文件