问个比较白痴的有关问题：使用PHP页面上载
问个比较白痴的问题：使用PHP页面下载
很多下载网站都是把下载的链接搞成链接到一个PHP页面，通过这个页面读取文件流来完成下载的过程，
这样做有什么好处？为什么不可以直接指向被下载的文件？
------解决方案--------------------
防盗的作用。不想被人看到真实下载地址
------解决方案--------------------
可隐藏真实下载路径 有什么用呢？你不还要提供一个“假”地址供人下载吗？
既然都可以下载了，那那个地址还能是假的吗？
------解决方案--------------------
php页面。可以做那么事情啊。比如有没有登录了。或者是不是从指定的页面过来下载的啊。。看需要呢。。
------解决方案--------------------
防盗链
------解决方案--------------------
传到php页面后，相应的应该有验证是否有访问的权限，是否安全，
------解决方案--------------------
有些目录不是随便可以访问的。
------解决方案--------------------
主要是防盗链 另外一个可能是积分什么的..
------解决方案--------------------
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