Find Bugs Without Writing Tests

PHPStan scans your whole codebase and looks for both obvious & tricky bugs. Even in those rarely executed if statements that certainly aren't covered by tests.

You can run it on your machine and in CI to prevent those bugs ever reaching your customers in production.

No autoloader? No problem.

It doesn't matter how old your code is, PHPStan is here to help you improve it. Thanks to the baseline, you can start writing better code today.

Thanks to rule levels you don't get overwhelmed with thousands of errors on the first run.

You can increase PHPStan's capabilities on your code at your own pace. It makes work feel like a game.