Online PHP editor | refs for 9UYio

<?php declare(strict_types = 1); namespace App { class Status { const ACTIVE = 1; const INACTIVE = 2; const SOLD = 3; private $value; private $labels = [ self::ACTIVE => 'Active', self::INACTIVE => 'Inactive', self::SOLD => 'Sold', ]; /** * Status constructor. * @param $value */ public function __construct(int $value) { if (!in_array($value, $this->labels)) { throw new \InvalidArgumentException('Invalid status'); } $this->value = $value; } public function __toString() { return $this->labels[$this->value]; } } class Product { private $id; private $name; private $status; /** * Product constructor. * @param $id * @param $name * @param $status */ public function __construct(int $id, string $name, Status $status) { $this->id = $id; $this->name = $name; $this->status = $status; } } $status = new Status(Status::SOLD); var_dump(new Product(1, 'Chess board', $status)); echo "\n\n\n\n{$status}"; }