Libraries tagged by immutable data

Immutable directed and undirected graph data structures with BFS, DFS, topological sort, and cycle detection

Go to Download

Immutable data structures for PHP arrays, providing strict separation between lists and objects, safe access semantics, key validation, and a clean, predictable API for defensive and expressive programming.

Go to Download

Immutable Data Structures

Go to Download

Stk Immutable Data objects

Go to Download

Immutable test data builders for PHP - perfect defaults, clone-based tailoring per test, loud refusal on impossible state and a bundled PHPStan rule set that enforces how a builder must be written. Zero runtime dependencies.

Go to Download

Provides immutable classes for dates, times, time-zones and periods.

Go to Download

An attempt to make the Carbon date library immutable.

Go to Download

An DateTime class to deal with timestamp/DateTimeInterface

Go to Download

TC39 Temporal API for PHP — immutable dates, times, durations, and time zones with nanosecond precision

Go to Download

MongoDB database access using immutables

Go to Download

Cally is a lightweight, immutable registry for storing and retrieving data or services in PHP. It provides a simple yet powerful way to manage configurations, dependencies, or any key-value pairs with support for immutability and PSR-11 compliance. Cally is ideal for any project where a full-fledged dependency injection container is unnecessary.

Go to Download

Validated types for PHP: Email, UUID, URL, and more

Go to Download

A robust, immutable processor pipeline component for the KaririCode Framework — ARFA 1.3 compliant. Enables modular, configurable processing chains for data transformation, validation, and sanitization.

Go to Download

An immutable API on top of PDO to compose and execute SQL statements

Go to Download

A fluent, immutable, fully-typed SQL query builder for PHP (PostgreSQL, MySQL and MariaDB).

Go to Download