douduo2407 2012-11-21 14:31
浏览 61

限制单击链接的次数

I need to limit the number of times a pdf is downloaded by people (to 500). Ideally it would count the clicks to 500 and then remove the link. It has just occurred to me that I will also need to stop each person clicking more than once. Basically I have been asked to allow the first 500 people download a file and then end it. PHP or javascript would be prefered (its on a wordpress site)

regards

Rich

  • 写回答

3条回答 默认 最新

  • duanchen7036 2012-11-21 14:33
    关注

    You don't wanna limit the number of times a link can be clicked, you want to limit the number of times that particular link returns a PDF file.

    In other words, your link shouldn't point directly to the requested resource (the PDF), but to a PHP file that can assert that the file hasn't been downloaded more than 500 times.

    Here's an example of how to output files outside your www directory to the browser.

    评论

报告相同问题?

悬赏问题

  • ¥17 pro*C预编译“闪回查询”报错SCN不能识别
  • ¥15 微信会员卡接入微信支付商户号收款
  • ¥15 如何获取烟草零售终端数据
  • ¥15 数学建模招标中位数问题
  • ¥15 phython路径名过长报错 不知道什么问题
  • ¥15 深度学习中模型转换该怎么实现
  • ¥15 HLs设计手写数字识别程序编译通不过
  • ¥15 Stata外部命令安装问题求帮助!
  • ¥15 从键盘随机输入A-H中的一串字符串,用七段数码管方法进行绘制。提交代码及运行截图。
  • ¥15 TYPCE母转母,插入认方向