Can't access variable after radio select. Livewire - laravel-livewire

Question

New to Laravel / Livewire.
I have a component that outputs a radio group, It renders fine.
When I select one of the radio controls I get an error, "Attempt to read property "id" on array"
Here I pass an array of options from my blade file
#livewire('test-options', ['options' => $option])
Component
class TestOptions extends Component {
public $selected;
public $options;
public function mount($options)
{
$this->options = $options;
}
public function render()
{
return view('livewire.test-options', [
'options' => $this->options
]);
}
component blade
<div>
#foreach($options['items'] as $option_items)
<div class="custom-control custom-radio">
<input
wire:model="selected"
class="custom-control-input"
type="radio"
id="rdio_{{$option_items['0']->id}}_{{$options['option']->id}}">
<label class="custom-control-label" for="rdio_{{$option_items['0']->id}}_{{$options['option']->id}}">{{$option_items['0']->title}}</label>
</div>
#endforeach

Answer 1

The issue is, when you select a radio, Livewire is refreshing the component. However, the $options array is not being passed again. mount() will only run when the component is first rendered.
You are already passing the options into the component, the $optons variable does not need to be mounted as it is already loaded and set here:
#livewire('test-options', ['options' => $option])
Change your code to:
class TestOptions extends Component {
public $selected;
public $options;
public function render()
{
return view('livewire.test-options', [
'options' => $this->options
]);
}
If you're also trying to get a value from the radio input, you'll need to add a value:
<input
wire:model="selected"
class="custom-control-input"
type="radio"
value="yourvaluehere"
id="rdio_{{$option_items['0']->id}}_{{$options['option']->id}}">
From the docs:
In Livewire components, you use mount() instead of a class constructor __construct() like you may be used to. NB: mount() is only ever called when the component is first mounted and will not be called again even when the component is refreshed or rerendered.
Read more here: Receiving Parameters