ramsey/uuid
Uuid
This PHP library provides tools for generating and validating universally unique identifiers according to RFC 4122 standards. It implements a generation tool for creating version 1, 3, 4, and 5 identifiers, as well as sequential and Nil UUIDs.
The library features specialized capabilities for transforming identifiers between hexadecimal strings, binary bytes, integers, and date objects. It supports the generation of sequential identifiers to improve database indexing and storage performance, as well as deterministic name-based identifiers using MD5 or SHA-1 hashing.
The project includes a validation engine for verifying identifier strings and a command line interface for direct generation and decoding from the terminal. It also provides configurable randomness providers, such as Sodium or OpenSSL, to seed the generation process.
Features
- Unique Identifier Generators - Implements a comprehensive suite of universally unique identifier generators compliant with RFC 4122 standards.
- Distributed Identifier Generators - Generates unique identifiers that remain distinct across distributed servers without requiring a central coordinator.
- Sequential UUID Generation - Creates unique identifiers that maintain chronological order to optimize database storage and indexing.
- Identifier Storage Optimizations - Implements sequential identifier generation and binary encoding to optimize database indexing and reduce storage fragmentation.
- Database Indexing Optimizers - Optimizes database indexing by generating sequential identifiers that reduce fragmentation in indexed tables.
- Identifier Generators - Provides a complete toolkit for creating version 1, 3, 4, and 5 UUIDs, including Nil identifiers.
- Sequential UUIDs - Implements chronological byte ordering for UUIDs to ensure sequential sorting and reduce database index fragmentation.
- PHP UUID Libraries - Provides a comprehensive set of tools for generating and validating UUIDs within PHP applications.
- RFC 4122 Implementations - Ensures full compliance with RFC 4122 specifications for interoperability across different systems and languages.
- Namespace-Based Identifiers - Generates deterministic version 3 and 5 identifiers by hashing a namespace and name together.
- String Validation and Normalization - Ships a validation engine that verifies if strings conform to standard UUID formats using strict or relaxed patterns.
- Identifier Codecs - Provides specialized tools to transform identifiers between hexadecimal strings, binary bytes, integers, and date objects.
- Cryptographic Randomness Providers - Provides a pluggable abstraction layer for fetching entropy from cryptographic providers like Sodium and OpenSSL.
- Format Validators - Verifies the structural integrity of UUID strings using regular expressions against standard formats.
- Binary-to-String Transformations - Provides utilities for converting UUIDs between raw binary bytes and human-readable hexadecimal string representations.
- UUID Validation - Provides a validation engine to verify that input strings conform to standard UUID patterns.
- String Manipulation - Generates universally unique identifiers.
