Laravel - Selected value in form

I have an edit account page, and I want to put the value in the database as selected :

@foreach($all_orga as $val)
    @if($val->id_organisme==13)
        <OPTION selected value=""></OPTION>
    @else
        <OPTION value=""></OPTION>
    @endif
@endforeach

This works fine as it displays the list but nothing is "selected", so I edited it using $compte->id_organisme, which is equal 3 in my test:

@foreach($all_orga as $val)
    @if($val->id_organisme == $compte->id_organisme)
        <OPTION selected value=""></OPTION>
    @else
        <OPTION value=""></OPTION>
    @endif
@endforeach

It still displays the list, but again, nothing "selected".

Informations :

dd($all_orga) 

    EQUALS

array:12 [▼
  0 => {#566 ▼
    +"id_organisme": 2
    +"nom": "Orga 1"
  }
  1 => {#515 ▶}
  2 => {#565 ▶}
  3 => {#564 ▶}
  4 => {#563 ▶}
  5 => {#562 ▶}
  6 => {#561 ▶}
  7 => {#560 ▶}
  8 => {#559 ▶}
  9 => {#558 ▶}
  10 => {#557 ▶}
  11 => {#556 ▶}
]

---

dd($compte->id_organisme)

    EQUALS

3

via Chebli Mohamed