How to create a uuid with 8 or 16 characters use php?

Question

I want generate an account ID ,total user account less than 500K,so i want make account ID as short as possible, so I want know how to generate 8 or 16 characters ID use php ?

refer https://stackoverflow.com/questions/2040240/php-function-to-generate-v4-uuid — Dinesh undefined, May 30 '17 at 05:05
Possible duplicate of [PHP function to generate v4 UUID](https://stackoverflow.com/questions/2040240/php-function-to-generate-v4-uuid) — Lepidopteron, May 30 '17 at 07:20

score 10 · Accepted Answer · answered May 30 '17 at 04:59

10

Try this

echo strtoupper(bin2hex(openssl_random_pseudo_bytes(16)));

This will generate 16 characters unique string

You can create common function also

function GUID() {
    return strtoupper(bin2hex(openssl_random_pseudo_bytes(16)));
}
$id = GUID();
echo $id;

answered May 30 '17 at 04:59

Nidhi

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4

This would actually create a 32 character unique string. – masterchief Mar 08 '18 at 00:13
1

use `8` instead of `16` ---- `strtoupper(bin2hex(openssl_random_pseudo_bytes(8)));` will generate `16` characters – 风声猎猎 May 20 '21 at 06:40

How to create a uuid with 8 or 16 characters use php?

1 Answers1