Vectorface\UUID\UUID

Complexity

Total Complexity

1

Size/Duplication

Total Lines	16
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	v4()	0	9	1

<?php

namespace Vectorface\UUID;

class UUID
{
    /**
     * Generate a random universally unique identifier; a UUIDv4
     *
     * @return string A UUID, This should look something like c2b134ae-04a4-4e82-89e0-51cbe9639dfb
     */
    public static function v4()
    {
        $uuidStr = random_bytes(16); // 128 bits
        $uuidStr[6] = chr(0x40 | (ord($uuidStr[6]) & 0x0f)); // Set the high nibble of the 7th byte to 4
        $uuidStr[8] = chr(0x80 | (ord($uuidStr[8]) & 0x3f)); // Set highest two bits of the 9th byte to 0b10

        return sprintf(
            "%s%s-%s-%s-%s-%s%s%s",
            ...str_split(bin2hex($uuidStr), 4)
        );
    }
}