CODEWITHSUNDEEP
phpmysql
Ronald Nionzima
Ronald Nionzima

Reputation: 9

Using php mt_rand() function

Am trying to use the php mt_rand() function to produce for me a unique number to be used as a unique identifier for a row in the database. Can it pick a number it had previously picked from the range 1, 1000000. My code is as follows echo mt_rand(1, 1000000);?> Thanks for your continued help

Upvotes: 0

Views: 150

Answers (1)

Jessica
Jessica

Reputation: 7005

Yes, it will produce duplicates. It's just random, not unique. The easiest solution is to use an auto-increment column. If you don't want it to be sequential, you have a couple options. These are the two I would look at first:

https://github.com/ramsey/uuid

http://php.net/manual/en/function.uniqid.php

Upvotes: 4

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