Fom::select in laravel empty for default - php

Question

I´m trying to create a form select in laravel.
I was created perfectly, but in my view first option is 0 and one first option empty
I need to remove this 0 and option empty, but i don't know how i can do it, this is my actual code:
<div class="form-group row ">
{!! Form::label('restaurant_id', trans("lang.blog_restaurant_id"),['class' => 'col-3 control-label text-right']) !!}
<div class="col-9">
{!! Form::select('restaurant_id', [null => null, $restaurant], null, ['class' => 'select2 form-control']) !!}
<div class="form-text text-muted">{{ trans("lang.blog_restaurant_id_help") }}</div>
</div>
</div>
$restaurant it's one data array for to fill my select. I read that with first option null put selected option empty, but generate a empty option and 0.
Thanks for help me.
UPDATE
Laravel include optgroup into Form::select that it´s triggering my 0 this it´s the problem. i need delete optgroup
<select class="select2 form-control select2-hidden-accessible" id="restaurant_id" name="restaurant_id" tabindex="-1" aria-hidden="true">
<option value="" selected="selected"></option>
<optgroup label="0">
<option value="17">Foody Lindgren, Cremin and Erdman gdfgfg fgfg fg fgfg g fggf</option>
<option value="28">restaurante de pruebas</option>
<option value="29">probando</option>
<option value="30">pincho de castilla2</option>
</optgroup>
update 2
getting list of restaurant:
$restaurant = $this->restaurantRepository->pluck('name', 'id');
this is result in blade:
{"17":"Foody Lindgren, Cremin and Erdman gdfgfg fgfg fg fgfg g fggf","28":"restaurante de pruebas","29":"probando","30":"pincho de castilla2"}
Add toArray():
$restaurant = $this->restaurantRepository->pluck('name', 'id');
$restaurant->toArray();
same result

Answer 1

Please try this. Add blank key and blank value like below.
{!! Form::select('restaurant_id', ["" => "", $restaurant], null, ['class' => 'select2 form-control']) !!}

Answer 2

It seems that the $restaurant is an array.
So, you'd better do something like this:
Form::select('restaurant_id', $restaurant, null, ['class' => 'select2 form-control'])
you may need a proper mapping for your $restaurant in your controller, depending on what you need, like adding an empty option in the beginning.
// in Controller
$options = ["" => "select"] + $restaurant;
// In view
Form::select('restaurant_id', $options, null, ['class' => 'select2 form-control'])
update 2
You should make sure to send the $restaurant as an array:
$restaurant = $this->restaurantRepository->pluck('name', 'id')->toArray();
For adding an empty option:
$restaurant = ["" => "select"] + $restaurant;
There is also another option:
You can even add the select box manually instead of using Form::select.
<select class="select2 form-control" id="restaurant_id" name="restaurant_id">
<option value="" selected="selected"></option>
#foreach($restaurant as $value => $option)
<option value="{{ $value }}">{{ $option }}</option>
#endforeach
</select>