hydration-without-reflection.md

Hydrate an object without use reflection

From the PHP documentation:

The visibility of a property, a method or (as of PHP 7.1.0) a constant can be defined by prefixing the declaration with the keywords public, protected or private. Class members declared public can be accessed everywhere. Members declared protected can be accessed only within the class itself and by inheriting classes. Members declared as private may only be accessed by the class that defines the member.

Then, I can write this:

class Entity {
    protected $foo;
    protected $bar;
    protected $baz;

    public function getFoo()
    {
        return $this->foo;
    }

    public function getBar()
    {
        return $this->bar;
    }

    public function getBaz()
    {
        return $this->baz;
    }
}

class EntityHydrator extends Entity
{
    public function hydrate(Entity $entity, array $data)
    {
        $entity->foo = $data['foo'];
        $entity->bar = $data['bar'];
        $entity->baz = $data['baz'];
    }
}

$data = ['foo' => 1, 'bar' => 2, 'baz' => 3];

$entity = new Entity();
$hydrator = new EntityHydrator();
$hydrator->hydrate($entity, $data);

echo $entity->getFoo(); // 1
echo $entity->getBar(); // 2
echo $entity->getBaz(); // 3