Libraries tagged by immutable objects

Immutable numeric value object with chainable arithmetic operations and Laravel Number formatting

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PHP 8.5+ DTO and Data library with immutable DTOs and mutable Data objects

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A PHP helper utility class for fluent interaction and manipulation with collection data using immutable bags

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Immutable DTOs with bidirectional casting. No framework required. 8x faster than the alternative.

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A PHP library/collection of classes aimed to help developers using and undestanding immutable objects.

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Structured, type-safe, immutable JSON objects.

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RQL (Resource Query Language) domain layer -- immutable value objects, AST nodes, and interfaces. Zero dependencies.

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An Immutable Value Object JSend compliant

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Immutable, binary-backed value object for IPv4 and IPv6 addresses with parsing, classification, and comparison

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Immutable arbitrary-precision Money and Currency value objects for Laravel: ISO 4217 + custom currencies, exact decimal parsing, rounding-safe arithmetic and allocation, locale formatting, Eloquent casts and schema macros, validation, discounts, tax, and pluggable exchange rates (array, database, ECB).

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HTTP message objects for the ez-php framework — immutable Request, Response, RequestFactory, and ResponseEmitter. Zero dependencies.

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Cell-grid value objects for terminal rendering — Buffer and Cell as immutable, fluent data model.

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Simple helper to ensure immutable objects

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A PHP library/collection of classes aimed immutable objects.

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Immutable object library

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