Explore the concept of "smelly code" in this 43-minute conference talk from PHP UK Conference 2012. Learn to identify common code smells and anti-patterns in object-oriented PHP projects that can impact maintainability, extendability, and testability. Discover how to recognize indicators of deeper underlying problems in your application and implement strategies to prevent these issues from occurring. Gain insights from senior PHP developer Harrie Verveer as he shares his expertise on improving code quality, refactoring techniques, and best practices for object-oriented design. Cover topics such as inline comments, object relationships, inappropriate intimacy, and duplicated code. Conclude with a summary, Q&A session, and practical advice on conducting effective code reviews to enhance your PHP development skills.