Symfony Framework extensions and rules for PHPStan

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0.12.14 2021-01-11 09:58 UTC


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This extension provides following features:

  • Provides correct return type for ContainerInterface::get() and ::has() methods.
  • Provides correct return type for Controller::get() and ::has() methods.
  • Provides correct return type for Request::getContent() method based on the $asResource parameter.
  • Provides correct return type for HeaderBag::get() method based on the $first parameter.
  • Provides correct return type for Envelope::all() method based on the $stampFqcn parameter.
  • Notifies you when you try to get an unregistered service from the container.
  • Notifies you when you try to get a private service from the container.
  • Optionally correct return types for InputInterface::getArgument(), ::getOption, ::hasArgument, and ::hasOption.


To use this extension, require it in Composer:

composer require --dev phpstan/phpstan-symfony

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

Manual installation

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

    - vendor/phpstan/phpstan-symfony/extension.neon

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

    - vendor/phpstan/phpstan-symfony/rules.neon


You have to provide a path to srcDevDebugProjectContainer.xml or similar XML file describing your container.

        container_xml_path: var/cache/dev/srcDevDebugProjectContainer.xml
        # or with Symfony 4.2+
        container_xml_path: var/cache/dev/srcApp_KernelDevDebugContainer.xml
        # or with Symfony 5+
        container_xml_path: var/cache/dev/App_KernelDevDebugContainer.xml

Constant hassers

Sometimes, when you are dealing with optional dependencies, the ::has() methods can cause problems. For example, the following construct would complain that the condition is always either on or off, depending on whether you have the dependency for service installed:

if ($this->has('service')) {
    // ...

In that case, you can disable the ::has() method return type resolving like this:

		constant_hassers: false

Be aware that it may hide genuine errors in your application.

Console command analysis

You can opt in for more advanced analysis by providing the console application from your own application. This will allow the correct argument and option types to be inferred when accessing $input->getArgument() or $input->getOption().

		console_application_loader: tests/console-application.php

For example, in a Symfony project, console-application.php would look something like this:

require __DIR__.'/../config/bootstrap.php';
$kernel = new \App\Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
return new \Symfony\Bundle\FrameworkBundle\Console\Application($kernel);