PHP随机数生成与使用解析
【php100译文】在上一篇文章中我们介绍了如何使用
第二次运行得到七条结果
也许你会问,PHP随机数只能做这些无聊的事儿吗?rand( )看来并不是那么重要;你错了,想想随处可见的验证码、一些CMS系统的随机文章提取、下载地址分配等，随机数在这些应用中发挥着重要作用；另外，在安全和算法领域，随机数的很多应用也值得我们去深入研究，比如加密和同余法结构等。
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