How can I turn an object into an array (Symfony)?

Question

This is how I create my array fields:

public function index($slug, Request $request, UserPasswordEncoderInterface $passwordEncoder)
  {
    $page = $this->getDoctrine()->getRepository(Pages::class)->findOneBy(['slug'=>$slug]);
    $fields =  (array) $page;
    return $this->render('mypage.html.twig', ['page' => $page, 'fields' => $fields]);
  }

The output is:

array:3 [▼
  "\x00App\Entity\Pages\x00id" => 3
  "\x00App\Entity\Pages\x00name" => "cat"
  "\x00App\Entity\Pages\x00color" => ""
]

But I actually need this result:

array:3 [▼
  "id" => 3
  "name" => "cat"
  "color" => ""
]

According to the suggestions I made this change:

public function index($slug, Request $request, UserPasswordEncoderInterface $passwordEncoder)
  {
    $page = $this->getDoctrine()->getManager()->getRepository(Pages::class)->findOneBy(['slug'=>$slug]);
    $fields =  get_object_vars($page);
    return $this->render('mypage.html.twig', ['page' => $page, 'fields' => $fields]);
  }

But this outputs me an empty array.

Possible duplicate of Convert PHP object to associative array — treyBake
– treyBake, Commented Nov 26, 2018 at 8:43
Passing both your object and serialized object to your Twig template feels a bit unnecessary. To prevent a X/Y Problem, please explain why you need this. — Stephan Vierkant
– Stephan Vierkant, Commented Nov 26, 2018 at 8:46
@StephanVierkant It is because it was a way I could finally solve this problem: stackoverflow.com/questions/53476565/… — peace_love
– peace_love, Commented Nov 26, 2018 at 8:49
@StephanVierkant I could not loop through object properties. But through array I can. — peace_love
– peace_love, Commented Nov 26, 2018 at 8:50

Stephan Vierkant · Accepted Answer · 2018-11-26 08:45:02Z

6

You have two options:

1. Use Query::HYDRATE_ARRAY instead of findOneBy()

$query = $this->getDoctrine()
    ->getRepository(Pages:class)
    ->createQueryBuilder('p')
    ->getQuery();
$result = $query->getResult(Query::HYDRATE_ARRAY);

(stolen from this answer)

2. Use a Serializer

Use the Serializer Component or JMSSerializerBundle to serialize your entity object.

answered Nov 26, 2018 at 8:45

Stephan Vierkant

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1 Comment

peace_love Over a year ago

Worked with serializer!

$serializer = new Serializer(array(new GetSetMethodNormalizer()), array('json' => new JsonEncoder()));$fields =  $serializer->serialize($page, 'json');

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