Online PHP editor | refs for FL7cV

<?php function oldWay(string ...$packages): array { $existingPackages = ['a', 'b']; return $existingPackages += $packages; } function newWay(string ...$packages): array { $existingPackages = ['a', 'b']; return [...$existingPackages, ...$packages]; } var_dump(oldway('c', 'd'), newWay('c', 'd'));