A collection of PHPStan extensions

This repo contains some useful PHPStan extension for detecting errors in your code. The currently list of rules is:

UnusedClassRule

UnusedTraitRule

Install

composer require xactsystems/phpstan-extensions --dev

Usage

With PHPStan extension installer, everything is ready to run.

Otherwise manually enable the extension:

# phpstan.neon
include:
    'vendor/xactsystems/phpstan-extensions/config/extension.neon'
    

Rules

---

UnusedClassRule

This rule scans for class declarations and use statements. If a class is declared but not used within the scanned source files, an error is generated.

Disabling the rule

You can disable scanning classes as follows:

# phpstan.neon
parameters:
    unused_classes:
        classes: false

Excluding files

You can exclude directories and individual files from being scanned by this rule:

# phpstan.neon
parameters:
    unused_classes:
        excludePaths:
            - 'src/Controller'
            - 'src/MyUnusedClass.php'

Excluding Services

By default, some known service and framework classes are excluded. There are a number of base classes from Symfony, Doctrine and PHPUnit that checked and, if matched, the class being analysed is ignored.

To disable this, set the excludeFrameworks property to false:

# phpstan.neon
parameters:
    unused_classes:
        excludeFrameworks: false

This list will change as new frameworks and classes are added. Please look at the source code in src/Frameworks for a list of base classes that are excluded.

If you want add a custom list of base classes to ignore, use the baseClassExcludes property:

# phpstan.neon
parameters:
    unused_classes:
        baseClassExcludes:
            - 'App\Service\MyAbstractService'
            - 'App\DI\MyDIClass'

Entries in baseClassExcludes are excluded regardless of the excludeFrameworks property value.

---

UnusedTraitRule

This rule scans for trait declarations and use statements. If a trait is declared but not used within the scanned source files, an error is generated.

Disabling the rule

You can disable scanning traits as follows:

# phpstan.neon
parameters:
    unused_classes:
        traits: false

Excluding files

You can exclude directories and individual files from being scanned by this rule using the excludePaths parameter as shown above.