Online PHP editor | perf for eRYIJ

<?php class ArrayMap implements \Iterator { public function __construct(private array $array) { } public function current(): mixed { return current($this->array); } public function next(): void { next($this->array); } public function key(): int|string|null { return key($this->array); } public function valid(): bool { return key($this->array) !== null; } public function rewind(): void { reset($this->array); } } class Aggregate implements \IteratorAggregate { public function __construct(private array $array) { } public function getIterator(): Traversable { return new ArrayMap($this->array); } } class Y { } class Z { } $_1 = new Aggregate([Z::class => Z::class,]); var_dump(1); $_2 = [...iterator_to_array($_1, true)]; var_dump(2); $_3 = [...$_2, Y::class => Z::class]; var_dump(3); $_4 = new Aggregate($_3); var_dump(4); [...$_4]; var_dump(5);

Version	System time (s)	User time (s)	Memory (MiB)
8.5.1	0.008	0.010	16.84
8.5.0	0.007	0.012	16.50
8.4.16	0.012	0.010	22.28
8.4.15	0.015	0.006	19.71
8.4.9	0.013	0.008	17.79
8.4.7	0.040	0.010	17.83
8.3.29	0.010	0.011	18.46
8.3.28	0.012	0.009	18.31
8.3.18	0.012	0.007	18.63
8.3.5	0.009	0.011	18.43