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多文件合并下载

$content = file_get_contents($file1);
$content .= file_get_contents($file2);
return response($content)->withHeaders([
    'Content-Disposition' => 'attachment; filename=' . urlencode('文件名'),
    'Content-Type' => 'application/octet-stream',
]);

页面定向跳转

return redirect($back_url);
return new Response(302, [‘Location’ => $location]);

mysql

$where[] = ['uid', '=', $request->uid];
$where[] = ['is_del', '=', 2];
$where[] = ['os_type', '=', $os_type];
$list = Feedback::getList($where, 'id,content,feedback_imgs,status,c_time,uid', 'id desc', 1, 10);
$info = Feedback::getOne($where);
$data = [
    'uid' => $request->uid,
    'status' => 3,
];
Feedback::insert($data);
Feedback::updateDataCache($where, $data);
Feedback::where('uid', $uid)->delete();

       try {
            $res = (new UserCollection())->insert($data);
            return $res ? $this->apiSuccess() : $this->apiFailed();
        } catch (\Throwable $e) {
            return $this->apiFailed();
        }

use think\facade\Db;
// 启动事务
        Db::startTrans();
        try {
            $data = [
                'u_time' => myDate(),
                'is_del' => 1,
            ];
            Db::table('banner')->whereIn('id', $ids)->update($data);
            Db::table('user')->whereIn('id', $ids)->update($data);
            // 提交事务
            Db::commit();
            $save = true;
        } catch (\Throwable $e) {
            // 回滚事务
            Db::rollback();
            $errorMessage = $e->getMessage();
            $save          = false;
        }

redis

//string
Redis::set(ADMIN_TOKEN_LOGIN . $jwt, json_encode($data), 'EX', 60 * 60 * 24 * 1, 1);

linux系统下workerman如何开机自动启动

查看php命令 执行目录 打开命令行工具，执行以下命令

whereis php

我这里执行后输出 /user/bin/php

打开 /etc/rc.d/rc.local，在exit 0前添加类似以下代码

/user/bin/php  /项目磁盘/路径/start.php start -d

exit 0

或者 /usr/bin/env php /www/wwwroot/owenzhang/start.php start -d

webman里面如何输出文件到php://output

$writer = new Xlsx($spreadsheet);
    $response = response();
    ob_start();
    $writer->save('php://output');
    $c = ob_get_contents();
    ob_flush();
    flush();
    $response->withHeaders([
        'Content-Type' => 'application/vnd.ms-excel',
        'Content-Disposition' => 'attachment;filename="xxx.xlsx"',
        'Cache-Control' => 'max-age=0',
    ])->withBody($c);
    return $response;

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