背景
针对PHP导出Excel的优化,在我之前的一篇文章里已经做过介绍:关于PHP内存溢出的思考,本文主要是介绍一款高性能的导出组件–xlswriter,他是一个PHP C扩展,官方文档地址,请点击。
安装
安装pecl
当我们发现pecl未安装时,则需要安装pecl。一般情况下,是安装在PHP的安装目录,示例命令如下:
# 进入PHP安装目录
cd /usr/local/php/bin
curl -o go-pear.php http://pear.php.net/go-pear.phar
php go-pear.php
# 安装完成后,软连接到bin目录下
ln -s /usr/local/php/bin/pecl /usr/bin/pecl
安装xlswriter
pecl install xlswriter
# 添加 extension = xlswriter.so 到 ini 配置
使用
具体使用可以参考官方文档,会介绍的更加详细,我这就上一段我使用中的代码:
封装的导出service
/**
* 下载
* @param $header
* @param $data
* @param $fileName
* @param $type
* @return bool
* @throws
*/
public function download($header, $data, $fileName)
{
$config = [
'path' => $this->getTmpDir() . '/',
];
$now = date('YmdHis');
$fileName = $fileName . $now . '.xlsx';
$xlsxObject = new \Vtiful\Kernel\Excel($config);
// Init File
$fileObject = $xlsxObject->fileName($fileName);
// 设置样式
$fileHandle = $fileObject->getHandle();
$format = new \Vtiful\Kernel\Format($fileHandle);
$style = $format->bold()->background(
\Vtiful\Kernel\Format::COLOR_YELLOW
)->align(Format::FORMAT_ALIGN_VERTICAL_CENTER)->toResource();
// Writing data to a file ......
$fileObject->header($header)
->data($data)
->freezePanes(1, 0)
->setRow('A1', 20, $style);
// Outptu
$filePath = $fileObject->output();
// 下载
header("Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
header('Content-Disposition: attachment;filename="' . $fileName . '"');
header('Cache-Control: max-age=0');
header('Content-Length: ' . filesize($filePath));
header('Content-Transfer-Encoding: binary');
header('Cache-Control: must-revalidate');
header('Pragma: public');
ob_clean();
flush();
if (copy($filePath, 'php://output') === false) {
throw new RuntimeException('导出失败');
}
// Delete temporary file
@unlink($filePath);
return true;
}
/**
* 获取临时文件夹
* @return false|string
*/
private function getTmpDir()
{
// 目录可以自定义
// return \Yii::$app->params['downloadPath'];
$tmp = ini_get('upload_tmp_dir');
if ($tmp !== False && file_exists($tmp)) {
return realpath($tmp);
}
return realpath(sys_get_temp_dir());
}
/**
* 读取文件
* @param $path
* @param $fileName
* @return array
*/
public function readFile($path,$fileName)
{
// 读取测试文件
$config = ['path' => $path];
$excel = new \Vtiful\Kernel\Excel($config);
$data = $excel->openFile($fileName)
->openSheet()
->getSheetData();
return $data;
}
调用处代码
导出
/**
* 导出
*/
public function actionExport()
{
try {
/**
* @var $searchModel SkuBarCodeSearch
*/
$searchModel = Yii::createObject(SkuBarCodeSearch::className());
$queryParams['SkuBarCodeSearch'] = [];
$result = $searchModel->search($queryParams, true);
$formatData = [];
if (!empty($result)) {
foreach ($result as $key => &$value) {
$tmpData = [
'sku_code' => $value['sku_code'],
'bar_code' => $value['bar_code'],
'created_at' => $value['created_at'],
'updated_at' => $value['updated_at'],
];
$formatData[] = array_values($tmpData);
}
unset($value);
}
$fields = [
'sku_code' => 'SKU编码',
'bar_code' => '条形码',
'created_at' => '创建时间',
'updated_at' => '更新时间',
];
/**
* @var $utilService UtilService
*/
$utilService = UtilService::getInstance();
$utilService->download(array_values($fields), $formatData, 'sku_single_code');
} catch (\Exception $e) {
Yii::$app->getSession()->setFlash('error', '导出失败');
}
}
导入
public function actionImportTmpSku()
{
try {
/**
* @var $utilService UtilService
*/
$utilService = UtilService::getInstance();
$path = '/tmp/'; // 文件目录
$fileName = 'sku_0320.xlsx';
$excelData = $utilService->readFile($path, $fileName);
unset($excelData[0]);
$excelData = array_merge($excelData);
// ... ... 业务代码
} catch (\Exception $e) {
echo $e->getMessage();
exit;
}
}
结论
整体使用下来,在处理大数据量时,性能相比于原来的PHPExcel确实高了很多。