Pluck id (integer) cast to string Laravel - php

Question

While plucking from a database, I get id as strings.
$alphabets = new Alphabet();
return $alphabets->pluck('name', 'id');
Output
{
"1": "Apple",
"2": "Ball",
"3": "Cat"
}
Expected
{
1: "Apple",
2: "Ball",
3: "Cat"
}
But, when I reverse ID and name,
return $alphabets->pluck('id', 'name');
I get id as integer.
{
"Apple": 1,
"Ball": 2,
"Cat": 3
}
I'm not sure what's happening behind the scene. But how can I get ID in integer ? Actually, old flash session doesn't set value because of 1 vs "1" in Form Collective.
{!! Form::select('alphabet', $alphabets, null, ['class' => 'form-control', 'multiple' => true]) !!}

Answer 1

Try this code
$alphabets = new Alphabet();
return $alphabets->all()->pluck('name', 'id');
Alphabet.php
You should cast your columns like this.
protected $casts = [
'id' => 'integer',
'name' => 'string'
];

Answer 2

I think I found the answer here.
https://laracasts.com/discuss/channels/laravel/pluck-id-integer-cast-to-string
Here I found JSON only allows key names to be strings.
Using number as "index" (JSON)
{
"1": "Apple",
"2": "Ball",
"3": "Cat"
}
Actually, I want to achieve it for Form Collective. It was a bug and it's PR has been merged now.
https://github.com/LaravelCollective/html/pull/368#pullrequestreview-46820423

Answer 3

you also convert key into int
$alphabets = new Alphabet();
$alphaArr =$alphabets->pluck('name', 'id');
foreach($array as $key => $value) {
$newArray[(int) $key] = $value;
}

Answer 4

Usually, pluck() method gives you associative array of values
in string values.
So, try using select statements like this:
$data = Alphabet::select('id','name')->get()->toArray();
This will give you following result:
array:3 [▼
0 => array:2 [▼
"id" => 1
"name" => "Apple"
]
1 => array:2 [▼
"id" => 2
"name" => "Ball"
]
2 => array:2 [▼
"id" => 3
"name" => "Cat"
]
]
Now, using simple loop you can get your expected array.
$expected = array();
foreach($data as $d){
$expected[$d['name']] = $d['id'];
}
dd($expected);

Answer 5

Adding this line fix the old session issue of LaravelCollective/Html.
|| in_array((string) $value, $selected, true)
/**
* Determine if the value is selected.
*
* #param string $value
* #param string $selected
*
* #return null|string
*/
protected function getSelectedValue($value, $selected)
{
if (is_array($selected)) {
return in_array($value, $selected, true) || in_array((string) $value, $selected, true) ? 'selected' : null;
} elseif ($selected instanceof Collection) {
return $selected->contains($value) ? 'selected' : null;
}
return ((string) $value == (string) $selected) ? 'selected' : null;
}