set permission to role spatie/laravel-permission - laravel

Question

I'm trying to use this library and set permission to my users. I'm reading documentation and I created my roles. I set my array in input with name.
#foreach ($allPermission as $permission)
<div class="col-md-2">
<label class="form-check-label mr-4" for="{{ $permission->id }}">{{ $permission->name }}</label>
<input class="form-check-input" name="permission[]" type="checkbox" id="{{ $permission->id }}" value="{{ $permission->name }}">
</div>
#endforeach
In my controller, I received this:
Array ( [0] => show [1] => create [2] => destroy )
I'm trying to set this permissions with this:
$user = User::where("id", $id)->update([
'name' => $request->get('name'),
'email' => $request->get('email'),
'password' => \Hash::make($request->get('password')),
]);
// update permissions to user
$user->givePermissionTo($request->get('permission'));
this returns...
Call to a member function givePermissionTo() on int
I'm trying to set permissions with id and with name and getting same error.

Answer 1

$user = User::where("id", $id)->update([
'name' => $request->get('name'),
'email' => $request->get('email'),
'password' => \Hash::make($request->get('password')),
]);
return $user is count records was updated ($user of you is not a collection)
you can use :
$user = User::find($id);
then
$user->givePermissionTo($request->get('permission'));