• PHPStan
• Nette Framework

This extension provides following features:

• Nette\ComponentModel\Container::getComponent() knows type of the component because it reads the return type on createComponent* (this works best in presenters and controls)
• Array access on components ($component['name']) resolves types via createComponent* methods
• Nette\DI\Container::getByType and createInstance return type based on first parameter (Foo::class).
• Nette\Forms\Container::getValues return type based on $asArray parameter.
• Nette\Forms\Container::getUntrustedValues return type based on mapping class parameter.
• Nette\Forms\Controls\BaseControl fluent methods return static instead of BaseControl.
• Nette\ComponentModel\Component::lookup return type based on $throw parameter.
• Nette\Application\UI\Component::getPresenter return type based on $throw parameter.
• Nette\Application\UI\Presenter::getSession returns Session or SessionSection based on arguments.
• Dynamic methods of Nette\Utils\Html
• Magic Nette\Object and Nette\SmartObject properties
• Event listeners through the on* properties
• Presenter @inject properties are treated as initialized.
• Defines early terminating method calls for Presenter methods to prevent Undefined variable errors
• Understand the exact array shape coming from Nette\Utils\Strings::match() and Nette\Utils\Strings::matchAll() based on pattern
• Nette\Utils\Strings::replace() callback closure parameter type inferred from regex pattern

It also contains these framework-specific rules (can be enabled separately):

• Do not extend Nette\Object, use Nette\SmartObject trait instead
• Rethrow exceptions that are always meant to be rethrown (like AbortException)
• Validate regex patterns passed to Nette\Utils\Strings methods

To use this extension, require it in Composer:

composer require --dev phpstan/phpstan-nette

If you also install phpstan/extension-installer then you're all set!

If you don't want to use phpstan/extension-installer, include extension.neon in your project's PHPStan config:

includes:
    - vendor/phpstan/phpstan-nette/extension.neon

To perform framework-specific checks, include also this file:

    - vendor/phpstan/phpstan-nette/rules.neon