Mastering PHPStan Custom Rules - Defect Driven Design and Static Analysis

Explore the advanced capabilities of PHPStan custom rules in this 29-minute conference interview with Ondřej Mirtes, the creator of PHPStan, recorded for PHP UK Conference. Discover how to move beyond standard static analysis to create project-specific rules that enforce architectural decisions and maintain codebase consistency. Learn the concept of "Defect Driven Design" where custom rules replace individual tests to prevent entire categories of bugs permanently. Understand how static analysis can detect issues without executing code and how it serves as a testing ground for future PHP language features like Generics and the never return type. Gain insights into working with Abstract Syntax Trees (AST) to understand code structure and the relationship between PHPStan's detection capabilities and Rector's automation features. Get details about PHPStan Office Hours at the conference hallway track and learn about commercial usage and project support options.