Online PHP editor | output for mi5em

<?php class warehouse { public function __construct(private int $id, private int $capacity, private array $items) { } public function getId() { return $this->id; } } class inventory_feed { public function __construct(private int $id, private int $warehouseId, private string $code) { } public function getWarehouseId() { return $this->warehouseId; } } $warehouse_1 = new warehouse(1, 100, [1,2,3,4]); $warehouse_2 = new warehouse(2, 1100, [1,2,3,4]); $warehouse_3 = new warehouse(3, 12000, [1,2,3,4]); $warehouse_4 = new warehouse(4, 130000, [1,2,3,4]); $warehouse_5 = new warehouse(5, 1400000, [1,2,3,4]); $inventory_feed_1 = new inventory_feed(12, 1, "2as21332kjd"); $inventory_feed_2 = new inventory_feed(10, 2, "2123asagfrtsdd"); $inventory_feed_3 = new inventory_feed(11, 3, "2as1231sds2d"); $inventory_feed_4 = new inventory_feed(13, 4, "2as1231sds2d"); $inventory_feed_5 = new inventory_feed(14, 5, "2as1231sds2d"); $ifeeds = [ "a" => $inventory_feed_1, "b" => $inventory_feed_2, "c" => $inventory_feed_3 ]; $warehouses = [ $warehouse_1, $warehouse_2, $warehouse_3, $warehouse_4, $warehouse_5 ]; $feedMap = array_fill_keys(array_map(fn($obj) => $obj->getWarehouseId(), $ifeeds), true); $warehouses_filtered = array_filter($warehouses, fn($warehouse) => isset($feedMap[$warehouse->getId()])); var_export($warehouses_filtered);