PHPStan Custom Rules

When to use

• The user needs to pick which PHP-Parser AST node type a custom PHPStan rule should target (method call, class, new expression, and so on).
• The user wants to test a custom PHPStan rule with RuleTestCase and fixture files asserting the expected errors and lines.
• The user wants to write a custom PHPStan rule that implements the Rule interface to enforce a project-specific convention.

When NOT to use