Best way to generate a UUID in the laravel framework

[nielsprinsfps]

What is the best way to generate a random UUID?

[NielsPrins]

You can use this.
It uses random bytes and puts them in the right positions by using the vsprintf function.

Random bytes

$UUID = vsprintf( '%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex(random_bytes(16)), 4) );

[shaedrich]

This shouldn't be the marked answer as this will result in potentially invalid UUIDs.

• The first hexadecimal digit in the third group represents the version number. To be RFC-compliant, this can only be one of 0, 1, 2, 3, 4, 5, 6, 7, 8, and F
• If said digit is 0 or F, all other digits have to be the same digit
• The first hexadecimal digit in the fourth group represents the variant. If the version is 4, this digit can only be 8, 9, A or B resp. C or D
• etc.

You cannot guarantee this with your solution. This will result in a UUID lookalike, not a true UUID, although, this might happen at random.

[shaedrich]

Just use \Illuminate\Support\Str::uuid() or \Illuminate\Support\Str::uuid7()

If you need other UUID versions, you can use symfony/uid (all versions except 2) or ramsey/uuid (full implementation), which are both included in Laravel.