PHPStan

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PHPStan is a static code analyzer that introspects the code without running it and catches various classes of bugs prior to unit testing.

Installation

To install PHPStan, run the following command:

composer require --dev phpstan/phpstan

Usage

  1. Run the following command to generate autocompletion and prevent any error messages that might occur because of the incomplete classes: vendor/bin/console dev:ide:generate-auto-completion
  2. Run this command to start analyzing: php -d memory_limit=2048M vendor/bin/phpstan analyze -c vendor/spryker/spryker/phpstan.neon vendor/<spryker | spryker-eco | spryker-middleware>/<MODULE>/ -l 2

Note that running this command with the level 2 key (-l 2) and having no errors is obligatory, and having no errors with level 5 (-l 5) is highly recommended.

Additional functionality

Main configuration file inheritance

To avoid duplicated code while specifying a different configuration in the parameters section of the phpstat.neon file, it is possible to extend this file and determine only the changes needed for a particular configuration of a module.

./[ROOT]/phpstan.neon

parameters:
    excludes_analyse:
        - %rootDir%/../../../src/Generated/*
        - %rootDir%/../../../src/Orm/*

bootstrap: %rootDir%/../../../phpstan-bootstrap.php

services:
    -
        class: PhpStan\DynamicType\FacadeDynamicTypeExtension
        tags:
            - phpstan.broker.dynamicMethodReturnTypeExtension
...

./[Module]/phpstan.neon

parameters:
    ignoreErrors:
    - '#.+ has invalid typehint type Symfony\\Component\\OptionsResolver\\OptionsResolverInterface.#'
    - '#Argument of an invalid type .+RolesTransfer supplied for foreach, only iterables are supported.#'