Online PHP editor | perf for 7rs3N

<?php class OrderItem { public int $order_id; public string $sku; public int $quantity; } class OrderItems { static function get(int $order_id):array { static $times = 0; if ( 0 !== $times ) { trigger_error('If this happens then the second call to callAndSet() evaluated the closure again.'); $times = 1; } // Simulating a two item order $item = new OrderItem(); $item->order_id = $order_id; $item->sku = 'ABC-123'; $item->quantity = 12; $item2 = new OrderItem(); $item2->order_id = $order_id; $item2->sku = 'XYZ-987'; $item2->quantity = 5; return [$item,$item2]; } } function callAndSet(mixed &$lazy) { return $lazy instanceof Closure ? $lazy = $lazy() : $lazy; } class Order { public int $order_id; public Closure|array $order_items; function __construct(int $order_id) { $this->order_id = $order_id; $this->order_items = fn() => OrderItems::get($order_id); } } $order = new Order(123); foreach( callAndSet($order->order_items) as $order_item) { printf("%d of %s\n", $order_item->quantity, $order_item->sku); } echo "---\n"; foreach( callAndSet($order->order_items) as $order_item) { printf("%d of %s\n", $order_item->quantity, $order_item->sku); } echo "---\n"; foreach( $order->order_items as $order_item) { printf("%d of %s\n", $order_item->quantity, $order_item->sku); }

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.015	0.006	18.43
8.3.5	0.009	0.012	16.52
8.3.4	0.011	0.011	18.72
8.3.3	0.016	0.000	18.75
8.3.2	0.004	0.004	24.18
8.3.1	0.000	0.007	24.66
8.3.0	0.005	0.003	26.16
8.2.18	0.003	0.012	25.92
8.2.17	0.014	0.004	19.08
8.2.16	0.010	0.003	22.96
8.2.15	0.004	0.004	25.66
8.2.14	0.008	0.000	24.66
8.2.13	0.008	0.000	26.16
8.2.12	0.007	0.000	21.13
8.2.11	0.009	0.000	20.46
8.2.10	0.006	0.006	20.38
8.1.28	0.009	0.006	25.92
8.1.27	0.005	0.003	23.99
8.1.26	0.005	0.003	26.35
8.1.25	0.004	0.004	28.09
8.1.24	0.005	0.005	20.39
8.1.23	0.008	0.003	21.99
8.1.10	0.007	0.005	17.36
8.0.8	0.008	0.009	16.98
7.4.30	0.002	0.005	16.42
7.4.19	0.003	0.005	16.34