如何使用 PHP 實作資料匯入和匯出功能

$uploadPath = './uploads/'; // 上传文件保存路径 $uploadedFile = $uploadPath . basename($_FILES['file']['name']); // 拼接上传文件的路径 if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadedFile)) { echo '文件上传成功'; } else { echo '文件上传失败'; }

$data = []; // 存储解析后的数据，格式为数组 // 使用第三方类库 PHPExcel 解析 Excel 文件 require_once './PHPExcel/PHPExcel.php'; $excelReader = PHPExcel_IOFactory::createReaderForFile($uploadedFile); $excelReader->setReadDataOnly(true); $excelObj = $excelReader->load($uploadedFile); $worksheet = $excelObj->getActiveSheet(); $highestRow = $worksheet->getHighestRow(); $highestColumn = $worksheet->getHighestColumn(); for ($row = 2; $row <= $highestRow; $row++) { $rowData = $worksheet->rangeToArray('A' . $row . ':' . $highestColumn . $row, null, true, false)[0]; // 解析每一行的数据，存入数组 $data[] = [ 'field1' => $rowData[0], 'field2' => $rowData[1], // ... ]; } // 将数据存入数据库 foreach ($data as $row) { // 执行插入数据库的操作，这里以 MySQL 数据库作为示例 $sql = "INSERT INTO table_name (field1, field2) VALUES ('{$row['field1']}', '{$row['field2']}')"; // ... // 执行 sql 语句 }

// 查询数据库，获取需要导出的数据，这里以 MySQL 数据库作为示例 $sql = "SELECT * FROM table_name"; $result = mysqli_query($conn, $sql); $data = []; while ($row = mysqli_fetch_assoc($result)) { // 将每一行的数据存入数组 $data[] = $row; }

// 使用第三方类库 PHPExcel 生成 Excel 文件 require_once './PHPExcel/PHPExcel.php'; $excelObj = new PHPExcel(); $excelObj->setActiveSheetIndex(0); $excelObj->getActiveSheet()->setTitle('Sheet1'); $row = 1; foreach ($data as $rowData) { // 将数据填充到每一行的单元格 $col = 0; foreach ($rowData as $value) { $excelObj->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value); $col++; } $row++; } $excelWriter = PHPExcel_IOFactory::createWriter($excelObj, 'Excel5'); $exportFile = './exports/export.xls'; // 导出文件保存路径 $excelWriter->save($exportFile);