README

A fully featured, immutable UUID library supporting all RFC versions 1–8, including validation, generation, metadata inspection, and JSON serialization.

✨ Highlights

• ✅ Supports all UUID versions (v1–v8)
• ✅ Immutable, final readonly classes
• ✅ Inspector tool for version/variant/metadata extraction

⚙️ Requirements

• PHP 8.3+

📦 Installation

composer require domainflow/uuid

🚀 Usage

🔧 Generate UUIDs

use DomainFlow\Uuid\{UuidV1, UuidV2, UuidV3, UuidV4, UuidV5, UuidV6, UuidV7, UuidV8};

UuidV1::generate();                     // Time-based UUID (v1)
UuidV2::generate(1001, 'uid');          // DCE Security UUID (v2)
UuidV3::generate($ns, 'my-name');       // Name-based UUID with MD5 (v3)
UuidV4::generate();                     // Random UUID (v4)
UuidV5::generate($ns, 'my-name');       // Name-based UUID with SHA-1 (v5)
UuidV6::generate();                     // Time-ordered UUID (v6)
UuidV7::generate();                     // Unix timestamp UUID (v7)
UuidV8::generate();                     // Application-defined/custom UUID (v8)

🔍 Inspect a UUID

use DomainFlow\Uuid\Inspector;

$inspector = Inspector::analyze('your-uuid-here');
$inspector->version();   // int (e.g. 4)
$inspector->variant();   // string (e.g. "RFC 4122")
$inspector->metadata();  // array with version-specific data

📘 Parameters Explained

UuidV2::generate(int $localId, string $domain)

• $localId: Typically a UID or GID (getmyuid(), getmygid())
• $domain: Either 'uid' or 'gid'

UuidV3 / UuidV5

UuidV3::generate(string $namespace, string $name);
UuidV5::generate(string $namespace, string $name);

• $namespace: A valid UUID string (e.g., DNS namespace 6ba7b810-9dad-11d1-80b4-00c04fd430c8)
• $name: Any string (email, file path, identifier)

🔒 Trait & Interface

All UUID classes implement:

• UuidInterface — common contract for all versions
• UuidMethodsTrait — shared implementation (equals(), fromString(), fromJson(), etc.)

📄 License

MIT