function Fields::getVersion

Same name in this branch

11.1.x vendor/ramsey/uuid/src/Nonstandard/Fields.php \Ramsey\Uuid\Nonstandard\Fields::getVersion()
11.1.x vendor/ramsey/uuid/src/Rfc4122/Fields.php \Ramsey\Uuid\Rfc4122\Fields::getVersion()

Overrides VersionTrait::getVersion

File

vendor/ramsey/uuid/src/Guid/Fields.php, line 173

Class

Fields: GUIDs are comprised of a set of named fields, according to RFC 4122

Namespace

Ramsey\Uuid\Guid

Code

public function getVersion() : ?int {
    if ($this->isNil() || $this->isMax()) {
        return null;
    }
    
    /** @var array $parts */
    $parts = unpack('n*', $this->bytes);
    return (int) $parts[4] >> 4 & 0xf;
}