PHP 迭代验证的问题
我现在要做个用户注册的东西，但是用户和密码不需要用户自己填写，是系统生成的我是自己写了个函数，用mt_rand做的，所以怕重复，就在类里面写了个静态方法，可以用，myclass::chkeuser验证，看是不是已经有了这个用户名密码，但是我觉得值验证一次，不行，要是下次，还是重复的呢，是不是该验证到，没有重复的为止，就想到迭代了，但是怎么写，脑袋里模糊了，请教各位大侠？
回复讨论(解决方案)
先去数据库插入用户，获取用户唯一id，然后用户等于 user+id的值，直接用用户id混淆生成即可。
例如 用户id = 3090， 则用户名是 user3090， 密码则是 md5('一个你的私钥'.3090)，这样肯定不会重复
其他没人弄过？？
搞不清楚你要验证什么？密码重复没关系啊
用户验证不就一个select么？得到数量>0就重复了
下次指的是什么？下一个随机值么？把全部用户名提出来放入数组，inarray不就判别了么，不用迭代啊
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