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Unique id for file name.
原标题:Unique id for file names.
  • 时间:2012-04-22 20:00:44
  •  标签:
  • php
  • function

然而,我已经为我的项目制定了这一法典。

uniqid().date( ymdhis ).rand();

这是多么独特?

Is it unique enough to prevent any possible collisions? Even for big sites with astronomical number of daily file submissions?

Or should I add more functions? (I don t want to because the output is already quite long.)

感谢。

最佳回答

Depending on what language you are using (i assume it is php) it is more then enough.

uniqid() is a command that generates a id based on a timestamp, making sure that it won t output a string twice. so only the uniqid() would already suffice

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