On 05/11/2018 01:59 AM, Arvids Godjuks wrote:
2018-05-10 16:33 GMT+02:00 Niklas Keller <m...@kelunik.com>:
Hey,
I hereby propose to deprecate uniqid(). There have been attempts to fix it
(
https://wiki.php.net/rfc/uniqid), but those were rejected during
discussion, because there's no possible fix without breaking BC. Instead of
a subtle BC break, this RFC favors the deprecation and moving users to
other functions.
It's to be discussed whether the function should be removed with PHP 8.0 or
just deprecated to avoid fully breaking things where it's not strictly
necessary. A deprecation will probably avoid most new usages, which is the
main goal.
RFC: https://wiki.php.net/rfc/deprecate-uniqid
Kind Regards,
Niklas
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Hello,
as a userland user of this function I do disagree with it's outright
removal. It has it's uses.
What can be done with it is drop the $more_entropy flag and make it
generate at least as long strings and use random_bytes under the hood for a
better random.
It can also adopt a length parameter so you can vary the random part as
much as you need it.
You don't always need a truly random token - I have a system that uses
uniqid to generate tens of thousands tokens per request and it's actually a
good thing they are time based at the start of it with a random part at the
end (as I said the random part should be improved and get rid of that
stupid dot when generating with $more_entropy = true).
It seems to me that for your use case, you could just use the time()
function to get part of your unique id and then use libsodium to
generated a nonce for the "random" part, using sodium's function for
increment the nonce between each use.
Predictable, sure, but your use case says they don't need to be a truly
random token - just unique (essentially a non-random nonce) but with a
time component.
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