Libraries tagged by immutable data

Immutable and persistent collections

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A lightweight zero-dependency PHP library for building immutable, serializable objects with validation capabilities.

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A collection library providing flexible and immutable collections.

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

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Infrastructure kernel for PHP — an immutable DomainKernel holding wired-up cache, logger, event dispatcher, HTTP client, database, mailer and filesystem, plus an optional ENV-driven bootstrap. Jardis-generated domain code reaches it through a single interface.

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Immutable Data Structures

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Stk Immutable Data objects

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Immutable data structures based on php/ds.

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An attempt to make the Carbon date library immutable.

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An DateTime class to deal with timestamp/DateTimeInterface

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

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Immutable date and time for PHP with a convenient interface

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MongoDB database access using immutables

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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.

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Immutable type-safe collections for PHP

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