TYPO3 Core

Variadic functions and the splat operator ... has been introduced with PHP 5.6 already, see https://www.php.net/manual/en/migration56.new-features.php

https://3v4l.org/eLAaH#v5.6.40

The general benefit of using variadic is type-safety, just compare the following examples which would do the same:

$items = [new Subject('a'), new Subject('b'), new Subject('c')];

function processArray(array $subjects) { ... }
processArray($items);

function processVariadic(Subject ...$subjects) { ... }
processVariadic(...$subjects);
// not using array wrapped in [] here
processVariadic(new Subject('a'), new Subject('b'), new Subject('c'));

ok. My bad. Strange that my PHPStorm complained about it, and said it could switch to PHP 7.4.

I Will look into before give more feedback

Please close this again, I was wrong.

I didn't find the option to close it myself.