php-about this part of the Web site layout problem

phpwebhtml Web domain name resolution

Http://www.xxxxx.com/videos/25787vod-play-id-25787-sid-3-pid-0.html

For the above URL, the last side of the parameter section is how to parse it? Or the site after the construction of all the pages are static words, that a site how much place to be able to discharge so many pages, large-scale web site is how to arrange their own web site? How do you hide your parameter URLs?

Http://xxxx.cn/home.php?mod=space&do=notice&view=app

How to avoid the above parameter URL? The great God works in a large network company, how do the big network companies arrange these problems?

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