Libraries tagged by invariants

A library which helps to specify, check and reflect code contracts.

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Based on hediet/contracts. A library which helps to specify, check and reflect code contracts. Fast porting for wordpress. An additional layer simply makes it possible to invalidate the exceptions in a production context.

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A lightweight Design-by-Contract library for PHP

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Audit-grade, append-only General Ledger for Laravel 12 with strict accounting invariants, period locking, and sub-ledger integration.

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Batteries-included funnypot for any PHP app: funnypot-core detection wired to funnypot-mainnet-client reporting, with the request-path invariants already enforced. One require instead of assembling the pieces yourself.

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Jetpack configuration package that initializes other packages and configures Jetpack's functionality. Can be used as a base for all variants of Jetpack package usage.

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Extends the base variants condition with current host.

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Product catalog system with support for product options and variants.

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Automatically create & optimize responsive image transforms, using either native Craft transforms or a service like imgix, with zero template changes.

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Generic, object-oriented Vector, Map, and Set collections with immutable and mutable variants

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Vanilo Master Product Module

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Complete election manager, providing natively many voting methods including: Condorcet / Borda (+ Nauru variant) / Copeland / Dodgson (2 Approximations) / FTPT / Instant-runoff (alternative vote) / Kemeny–Young / Minimax (+ variants) / Ranked Pairs (+ variants) / Schulze (+ variants), Single Transferable Vote (STV) / Comparison of Pairs of Outcomes by the Single Transferable Vote (CPO-STV)

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Converts between Japanese prefecture/region numbers and names, including kanji, hiragana, katakana, and English variants, backed by native PHP enums.

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Single Page Variants

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