#TIL : Split a Collection items into 2 groups using 1 boolean function

Old fashion way

$groupTrue = $groupFalse = [];
foreach ($items as $item) {
	if (some_logic_function($item)) {
		$groupTrue[] = $item;
	} else {
		$groupFalse[] = $item;
	}
}

New way

list($groupTrue, $groupFalse) = collect($items)
	->partition(fn ($item) => some_logic_function($item))
	->map(fn ($group) => $group->values());

tip: Using the last map then values to reset indexing of 2 groups after spliting.