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SOLID: The First 5 Principles of Object Oriented Design | DigitalOcean

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SOLID is an acronym for the first five object-oriented design (OOD) principles by Robert C. Martin (also known as Uncle Bob). Note: While these principles can apply to various programming languages, the sample code contained in this article will use PHP. These principles establish practices that lend to developing software with considerations for maintaining and extending as the project grows. Adopting these practices can also contribute to avoiding code smells, refactoring code, and Agile or Adaptive software development. SOLID stands for: In this article, you will be introduced to each principle individually to understand how SOLID can help make you a better developer. Single-responsibility Principle (SRP) states: A class should have one and only one reason to change, meaning that a class should have only one job. For example, consider an application that takes a collection of shapes—circles, and squares—and calculates the sum of the area of all the shapes in the collection. First, c

SOLID Design Principles Explained: Building Better Software Architecture | DigitalOcean Report this What is the reason for this report? This undefined is spam This undefined is offensive This undefined is off-topic This undefined is other Submit Conceptual Article SOLID Design Principles Explained: Building Better Software Architecture Updated on June 12, 2025 Development By Samuel Oloruntoba , Anish Singh Walia and Manikandan Kurup Language English Table of contents Popular topics Introduction SOLID is an acronym for the first five object-oriented design (OOD) principles by Robert C. Martin (

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