php arguments detector

The ideal number of arguments for a function is zero. ~ Robert C. Martin

Keep control over the complexity of your methods by checking that they do not have too many arguments with this package.

Installation

Requires >= PHP 7.3

composer require degraciamathieu/php-arguments-detector --dev

Usage

vendor/bin/phpargsdetector inspect {folder}

Options

options	description
--min-args=	Ignore methods with less than --min-args arguments.
--max-args=	Ignore methods with more than --max-args arguments.
--min-weight=	Ignore methods with less than --min-weight weight.
--max-weight=	Ignore methods with more than --max-weight weight.
--limit=	Number of methods displayed.
--without-constructor	Ignore method constructors from detection.
--sort-by-weight	Sort the results by the weight of methods.

Examples

vendor/bin/phpargsdetector inspect app/Services/Saml/

+------------------------------------------+------------------+-----------+--------+
| Files                                    | Methods          | Arguments | Weight |
+------------------------------------------+------------------+-----------+--------+
| app/Services/Saml/SamlMessageFactory.php | __construct      | 2         | 2      |
| app/Services/Saml/SamlMessageFactory.php | makeSamlResponse | 2         | 68     |
| app/Services/Saml/SamlSecurity.php       | checkSignature   | 2         | 18     |
| app/Services/Saml/SamlIssuer.php         | find             | 1         | 3      |
| app/Services/Saml/SamlKeeper.php         | keep             | 1         | 1      |
| app/Services/Saml/SamlMessageFactory.php | addAttributes    | 1         | 26     |
| app/Services/Saml/SamlMessageFactory.php | sign             | 1         | 12     |
| app/Services/Saml/SamlResponder.php      | launch           | 1         | 10     |
| app/Services/Saml/SamlKeeper.php         | has              | 0         | 0      |
| app/Services/Saml/SamlKeeper.php         | retrieve         | 0         | 0      |
+------------------------------------------+------------------+-----------+--------+
Total of methods : 10

vendor/bin/phpargsdetector inspect app/ --limit=3 --min-args=2 --without-constructor

+-------------------------------------------------+---------+-----------+--------+
| Files                                           | Methods | Arguments | Weight |
+-------------------------------------------------+---------+-----------+--------+
| app/Http/Middleware/RedirectIfAuthenticated.php | handle  | 3         | 27     |
| app/Http/Controllers/IssuerController.php       | update  | 2         | 24     |
| app/Http/Controllers/RestrictionController.php  | update  | 2         | 28     |
+-------------------------------------------------+---------+-----------+--------+
Total of methods : 3

vendor/bin/phpargsdetector inspect app/ --limit=3 --sort-by-weight

+-------------------------------------------------+------------------+-----------+--------+
| Files                                           | Methods          | Arguments | Weight |
+-------------------------------------------------+------------------+-----------+--------+
| app/Services/Saml/SamlMessageFactory.php        | makeSamlResponse | 2         | 68     |
| app/Http/Controllers/RestrictionController.php  | update           | 2         | 28     |
| app/Http/Middleware/RedirectIfAuthenticated.php | handle           | 3         | 27     |
+-------------------------------------------------+------------------+-----------+--------+
Total of methods : 3

Weight

The weight is the number of arguments multiplied by the number of lines of the method.

The weight of the foo method is 10 : 2 arguments * 5 lines.

class Bar {
    public function foo($a, $b)
    {
        if ($a) {
           //
        }

        return $b;
    }
}

You can use it as a complexity indicator.