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Example code of php-architecture-kit/uuid

Informations about the package uuid

php-architecture-kit/uuid

Provider-agnostic UUID Value Object for PHP applications, designed as a base for domain-specific Entity IDs in DDD architectures.

Features

Installation

You also need at least one UUID provider:

Quick Start

Creating Domain-Specific IDs

Provider Support Matrix

Feature Ramsey Symfony Notes
UUID v1 ✅ ✅ Time-based
UUID v1 + clockSequence ✅ ❌ Ramsey only
UUID v3 ✅ ✅ MD5 hash
UUID v4 ✅ ✅ Random
UUID v5 ✅ ✅ SHA-1 hash
UUID v6 ✅ ✅ Time-ordered (improved v1)
UUID v6 + clockSequence ✅ ❌ Ramsey only
UUID v7 ✅ ✅ Time-ordered + random
UUID v8 ✅ ❌ Custom data
Validation ✅ ✅

Performance

All benchmarks run on PHP 8.2, measuring mode (most frequent execution time).

Overhead Analysis

This library adds a thin abstraction layer over the underlying UUID providers. The table below shows the overhead compared to direct provider usage.

UUID Parsing (fromString)

Operation Direct Ramsey This Library Overhead
With validation 1.23μs 2.27μs +1.04μs (+85%)
Without validation N/A 0.82μs —
Operation Direct Symfony This Library Overhead
With validation 2.87μs 2.68μs -0.19μs (-7%)
Without validation N/A 0.85μs —

UUID Parsing (fromBinary)

Operation Direct Ramsey This Library Overhead
With validation 2.44μs 4.97μs +2.53μs (+104%)
Without validation N/A 2.36μs —
Operation Direct Symfony This Library Overhead
With validation 3.79μs 5.20μs +1.41μs (+37%)
Without validation N/A 2.33μs —

UUID Creation

Version Direct Ramsey This Library Overhead
v1 21.58μs 24.34μs +2.76μs (+13%)
v3 8.46μs 24.90μs +16.44μs (+194%)
v4 5.15μs 6.02μs +0.87μs (+17%)
v5 7.67μs 26.56μs +18.89μs (+246%)
v6 22.03μs 28.14μs +6.11μs (+28%)
v7 7.86μs 9.15μs +1.29μs (+16%)
v8 5.07μs 5.36μs +0.29μs (+6%)
Version Direct Symfony This Library Overhead
v1 5.27μs 11.19μs +5.92μs (+112%)
v3 6.17μs 6.25μs +0.08μs (+1%)
v4 1.81μs 3.04μs +1.23μs (+68%)
v5 6.26μs 9.09μs +2.83μs (+45%)
v6 6.93μs 12.30μs +5.37μs (+77%)
v7 3.81μs 4.65μs +0.84μs (+22%)

Key Insights

  1. Symfony backend is faster for most operations due to simpler implementation
  2. Parsing without validation (fromString($uuid, false)) is ~3x faster than with validation
  3. v4, v7, v8 have minimal overhead (~6-17%) - ideal for most use cases
  4. v3, v5 with Ramsey have higher overhead due to namespace UUID parsing in each call
  5. Autodetect mode selects the best provider automatically with minimal overhead
  6. For hot paths, consider:
    • Using fromString($uuid, false) when UUID is already validated
    • Caching namespace UUIDs for v3/v5 operations
    • Using v4 or v7 for best performance

When Overhead Matters

Use Case Typical Volume Impact
HTTP Request ID 1/request Negligible
Entity IDs 10-100/request Negligible
Batch processing 10,000+/batch ~10-60ms extra
Real-time systems μs-sensitive Consider direct provider

API Reference

Factory Methods

Method Description
Uuid::new() Creates new UUID (defaults to v7)
Uuid::fromString(string $uuid, bool $validate = true) Parse UUID string
Uuid::fromBinary(string $bytes, bool $validate = true) Parse 16-byte binary
Uuid::v1(?ClockInterface $clock, ?int $clockSequence, ?string $nodeIdentifier) Time-based
Uuid::v3(Uuid $namespace, string $name) MD5 hash-based
Uuid::v4() Random
Uuid::v5(Uuid $namespace, string $name) SHA-1 hash-based
Uuid::v6(?ClockInterface $clock, ?int $clockSequence, ?string $nodeIdentifier) Time-ordered
Uuid::v7(?ClockInterface $clock) Unix timestamp + random
Uuid::v8(string $customData) Custom 16-byte data
Uuid::nil() Nil UUID (all zeros)
Uuid::max() Max UUID (all ones)

Instance Methods

Method Description
value(): string Get UUID string
toString(): string Get UUID string
toBinary(): string Get 16-byte binary
getVersion(): int Get UUID version (0-15)
getTime(): ?DateTimeImmutable Get timestamp (v1/v6/v7)
getClockSequence(): ?int Get clock sequence (v1/v6)
getNode(): ?string Get node identifier (v1/v6)
equals(self\|string $other): bool Compare UUIDs
validate(): bool Validate UUID format

Namespace Constants

Source of Truth

RFC 9562 - Universally Unique IDentifiers (UUIDs)

License

MIT

All versions of uuid with dependencies

PHP Build Version
Package Version
Requires php Version ^8.0
psr/clock Version ^1.0
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