README

Opinionated PHPStan rules for naming things.

Table of Contents

1. Installation
   1. PHPStan Extension Installer
   2. Manual Installation
2. Rules
   1. Namespace
   2. Class Like (Class, Interface, Trait)
   3. Class
   4. Interface

Installation

Install the extension via Composer.

composer require --dev samlitowitz/phpstan-opinionated-nomenclature

This extension requires PHPStan to use.

PHPStan Extension Installer

Use the PHPStan Extension Installer to automatically install PHPStan extensions.

Manual Installation

Add vendor/samlitowitz/phpstan-opinionated-nomenclature/extension.neon to the includes section of your phpstan.neon or phpstan.neon.dist file, i.e.

includes:
    - vendor/samlitowitz/phpstan-opinionated-nomenclature/extension.neon

Rules

Namespace

1. Namespace names MUST NOT be equal to or end in DTO of any case (case-insensitive)

   <?php
   namespace DTO; // bad
   namespace Client\Dto; // bad

2. Namespace names MUST NOT be equal to Helper of any case (case-insensitive)

   <?php
   namespace Helper; // bad
   namespace Client\helper; // bad

3. Namespace names MUST NOT be equal to Util of any case (case-insensitive)

   <?php
   namespace Util; // bad
   namespace Client\util; // bad

Class Like (Class, Interface, Trait)

1. Class like names MUST NOT be equal to or end in DTO of any case (case-insensitive)

   <?php
   class DTO {} // bad
   class ClientDTO {} // bad

2. Class like names MUST NOT be equal to Helper of any case (case-insensitive)

   <?php
   class Helper {} // bad

3. Class like names MUST NOT be equal to Util of any case (case-insensitive)

   <?php
   class Util {} // bad

4. Class like names MUST NOT be equal to or start with any case (case-insensitive) of the namespace name it resides in

   <?php
   namespace Client;
   class ClientRequest {} // bad
   
   namespace Client\Request;
   class Request {} // bad

5. Class like names MUST NOT end with their type name of any case (case-insensitive)

   <?php
   class ClientClass {} // bad
   interface FileInterface {} // bad
   trait TransactionTrait {} // bad

Class

1. No non-final classes without children

   <?php
   class NonFinalNoChildren {} // bad

Interface

1. Interface names MUST NOT be prefixed with I

   <?php
   interface IWriter {} // bad