Apply clean code concepts to TypeScript projects with examples organized by programming topic.
Clean Code PHP
Apply clean code concepts to PHP projects using this collection of guidance and examples.
About Clean Code PHP
Clean Code PHP is a repository of guidance and code examples that applies Clean Code concepts from Robert C. Martin's book to PHP. It covers topics such as variable and function naming, comparisons, conditionals, classes, the SOLID principles and DRY. The authors describe it as a guide to producing readable, reusable and refactorable PHP software rather than a style guide. Each topic shows bad and good code examples.
Not every principle is presented as mandatory, and the repository states that these are guidelines that are not universally agreed upon. Most examples require PHP 7.1 or later, although the text notes that many developers still use PHP 5. The project is adapted from a similar guide for JavaScript and is open source.
Key features
- Variable naming guidance with bad and good PHP code examples
- Function design guidance, including argument count and avoiding flag parameters
- Explanation of the SOLID principles adapted for PHP
- Guidance on classes, including composition over inheritance
- Guidance on conditionals, type checks and removing dead code
Best for: PHP developers who write or refactor code and want practical guidance on readability and structure.
Good for
- Organized by topic, with a table of contents covering variables through SOLID and DRY
- Each topic includes bad and good code examples for comparison
- Open source and hosted in a public GitHub repository
Watch out for
- Most examples require PHP 7.1 or later
- Presents guidelines rather than strict rules, and not every principle is universally agreed upon
- Stated to be not a style guide, so it does not cover coding style conventions
Clean Code PHP at a glance
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Clean Code PHP FAQ
Which PHP version do the examples require?
Most of the examples only work with PHP 7.1 or later, according to the repository.
Do all of the principles have to be followed strictly?
No. The repository states that not every principle has to be strictly followed, and that these are guidelines.
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