Using PHPStan to detect errors (problems) in your Magento project
A few weeks back at MageTestFest 2019 in Florence, I gave a presentation on QA tools I like and gave some insights how they can be used in a Magento project. One of the tools I mentioned was PHPStan - a static analysis tool. PHPStan helps you to detect a lot of problems in your code due to using wrong types, calling methods that might not exist, passing the wrong number or types of arguments to methods and so on. PHPStan is also able to create your own rule sets of what behavior you want to check for.