# piotrplenik/clean-code-php

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12,450 stars · 2,257 forks · PHP · MIT

## Links

- GitHub: https://github.com/piotrplenik/clean-code-php
- awesome-repositories: https://awesome-repositories.com/repository/piotrplenik-clean-code-php.md

## Description

This project is a PHP clean code guide and software architecture reference. It provides a set of standards, naming conventions, and design patterns intended to improve the long-term maintainability and readability of PHP codebases.

The guide emphasizes a structured approach to refactoring and system design, focusing on the application of SOLID principles to reduce coupling and increase extensibility. It advocates for object-oriented design through the use of composition over inheritance, the use of final classes to prevent unexpected overrides, and the implementation of strict type declarations to eliminate bugs associated with dynamic typing.

The framework covers broader capability areas including software quality and class design. It provides techniques for simplifying control flow through early returns, managing side effects via dedicated service layers, and enhancing readability by standardizing naming conventions and removing redundant logic.

## Tags

### Software Engineering & Architecture

- [Clean Coding Standards](https://awesome-repositories.com/f/software-engineering-architecture/clean-coding-standards.md) — Provides a comprehensive set of standards and naming conventions for writing maintainable and readable PHP code. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [PHP Backend Architecture](https://awesome-repositories.com/f/software-engineering-architecture/php-backend-architecture.md) — Provides a comprehensive guide to applying clean code and architectural patterns for maintainable PHP backend projects.
- [Code Hygiene Standards](https://awesome-repositories.com/f/software-engineering-architecture/code-hygiene-standards.md) — Establishes naming conventions and logic refinement techniques to ensure long-term codebase maintainability.
- [Code Style Guides](https://awesome-repositories.com/f/software-engineering-architecture/code-style-guides.md) — Provides a comprehensive set of standards and patterns for writing readable and maintainable PHP code.
- [Object-Oriented Design Patterns](https://awesome-repositories.com/f/software-engineering-architecture/object-oriented-design-patterns.md) — Applies SOLID object-oriented design principles to reduce coupling and increase extensibility in PHP.
- [Architecture References](https://awesome-repositories.com/f/software-engineering-architecture/php-design-pattern-implementations/architecture-references.md) — Serves as a reference for structuring PHP systems using object composition and encapsulated state management.
- [Class Design Standards](https://awesome-repositories.com/f/software-engineering-architecture/php-design-pattern-implementations/class-design-standards.md) — Offers standards for PHP class design focusing on encapsulation, final classes, and single responsibility.
- [PHP Refactoring Techniques](https://awesome-repositories.com/f/software-engineering-architecture/php-refactoring-techniques.md) — Provides a structured approach to refactoring PHP codebases by eliminating duplication and simplifying control flow.
- [Service Layers](https://awesome-repositories.com/f/software-engineering-architecture/service-layers.md) — Centralizes state-changing operations into dedicated service layers to decouple business logic from side effects.
- [Composition Over Inheritance](https://awesome-repositories.com/f/software-engineering-architecture/software-architecture/architectural-patterns/modular-decoupled-design/structural-design-paradigms/composition-over-inheritance.md) — Provides a structured approach to building flexible PHP architectures by prioritizing object composition over class inheritance.
- [Object Oriented Design](https://awesome-repositories.com/f/software-engineering-architecture/software-architecture/foundational-theory-and-guidance/software-architecture-concepts/object-oriented-design.md) — Implements principles and patterns for structuring PHP systems based on objects and classes.
- [SOLID Principles](https://awesome-repositories.com/f/software-engineering-architecture/software-architecture/foundational-theory-and-guidance/software-architecture-principles/solid-principles.md) — Implements SOLID design guidelines to reduce coupling and increase the extensibility of PHP modules. ([source](https://github.com/piotrplenik/clean-code-php/blob/master/README.md))
- [Single Responsibility Principles](https://awesome-repositories.com/f/software-engineering-architecture/software-architecture/foundational-theory-and-guidance/software-architecture-principles/solid-principles/single-responsibility-principles.md) — Applies the single-responsibility principle to ensure each PHP class has one specific purpose to improve maintainability.
- [Side Effect Management](https://awesome-repositories.com/f/software-engineering-architecture/architectural-design-patterns/design-patterns/functional-design-patterns/side-effect-management.md) — Isolates state-changing operations into dedicated service classes to prevent unpredictable side effects. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Class Inheritance Restrictions](https://awesome-repositories.com/f/software-engineering-architecture/class-inheritance-restrictions.md) — Prevents uncontrolled inheritance chains by marking classes as final and encapsulating members. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Code Duplication Reduction](https://awesome-repositories.com/f/software-engineering-architecture/code-duplication-reduction.md) — Provides strategies for removing redundant logic and dead code by creating abstractions that consolidate repetitive patterns. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Control Flow Optimization](https://awesome-repositories.com/f/software-engineering-architecture/control-flow-optimization.md) — Simplifies complex conditional logic by utilizing polymorphism and early-return patterns. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Early-Return Patterns](https://awesome-repositories.com/f/software-engineering-architecture/control-flow-optimization/early-return-patterns.md) — Implements early-return logic to simplify function control flow and eliminate deep indentation levels.
- [Function Signature Optimizations](https://awesome-repositories.com/f/software-engineering-architecture/functional-design-patterns/function-signature-optimizations.md) — Enhances testability by refining function signatures to limit argument counts and eliminate boolean flags. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Function Naming Patterns](https://awesome-repositories.com/f/software-engineering-architecture/module-encapsulation-patterns/naming-based-encapsulation/function-naming-patterns.md) — Establishes a consistent and pronounceable vocabulary for naming variables and functions to increase clarity. ([source](https://github.com/piotrplenik/clean-code-php/blob/master/README.md))
- [Naming Conventions](https://awesome-repositories.com/f/software-engineering-architecture/naming-conventions.md) — Standardizes naming conventions for identifiers to increase the searchability and readability of the codebase. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Polymorphism Patterns](https://awesome-repositories.com/f/software-engineering-architecture/polymorphism-patterns.md) — Demonstrates how to replace complex conditional blocks with polymorphic class implementations to reduce cognitive load.
- [Type-Safe Development](https://awesome-repositories.com/f/software-engineering-architecture/type-safe-development.md) — Promotes reducing runtime bugs by enforcing strict type declarations and avoiding dynamic typing.

### Education & Learning Resources

- [Encapsulation Techniques](https://awesome-repositories.com/f/education-learning-resources/educational-resources/languages-and-programming-concepts/programming-language-mastery-guides/object-oriented-programming-concepts/encapsulation-techniques.md) — Provides guidance on bundling data and methods while restricting access to internal state using private members.

### Programming Languages & Runtimes

- [Type Safety](https://awesome-repositories.com/f/programming-languages-runtimes/language-features-paradigms/type-system-tools/type-safety.md) — Prevents runtime errors by enforcing strict type definitions and rigorous variable checks. ([source](https://github.com/piotrplenik/clean-code-php#readme))
- [Type Integrity Enforcement](https://awesome-repositories.com/f/programming-languages-runtimes/language-features-paradigms/type-system-tools/type-safety/type-integrity-enforcement.md) — Enforces strict type declarations and identical comparisons to eliminate bugs caused by PHP dynamic typing.
- [Early Return Patterns](https://awesome-repositories.com/f/programming-languages-runtimes/conditional-logic/early-return-patterns.md) — Provides techniques for simplifying control flow through early returns to eliminate deep indentation levels. ([source](https://github.com/piotrplenik/clean-code-php/blob/master/README.md))
- [PHP Application Frameworks](https://awesome-repositories.com/f/programming-languages-runtimes/language-ecosystems-tooling/php-application-frameworks.md) — Guides the design of flexible PHP applications using modular patterns and service-oriented architecture.
- [PHP Refactoring Frameworks](https://awesome-repositories.com/f/programming-languages-runtimes/php-refactoring-frameworks.md) — Implements a structured framework for refactoring PHP code to improve readability and reduce technical debt.