1.2.1121. Signature Trailing Comma

Trailing comma in method signature. This feature was added in PHP 8.0.

Allowing the trailing comma makes it possible to reduce the size of VCS’s diff, when adding , removing a parameter.

<?php

// Example from the RFC
class Uri {
    private function __construct(
        ?string $scheme,
        ?string $user,
        ?string $pass,
        ?string $host,
        ?int $port,
        string $path,
        ?string $query,
        ?string $fragment // <-- ARGH!
    ) {
        ...
    }
}
?>

See also PHP RFC: Allow trailing comma in parameter list.

1.2.1121.1. Specs

Short name	Php/SignatureTrailingComma
Rulesets	All, CE, CompatibilityPHP71, CompatibilityPHP72, CompatibilityPHP73, CompatibilityPHP74
Exakat since	2.1.0
PHP Version	With PHP 8.0 and more recent
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Features	trailing-comma
Available in	Entreprise Edition, Community Edition, Exakat Cloud