Laravel Controller Check Multiple Arrays - laravel

Question

I am sending multiple arrays via AJAX to my controller and I'm having trouble with validation.
I have 2 text inputs. Now, the issue is that at times both these inputs are present, but at other times only one might be present.
<input type="text" name="typeDetails[games]" class="form-control input-global"/>
<input type="text" name="typeDetails[art]" class="form-control input-global"/>
My JS is like this.
var data = { 'typeDetails[games]' : [], 'typeDetails[art]' : [] };
$("input[name='typeDetails[games]']").each(function() {
data['typeDetails[games]'].push($(this).val());
});
$("input[name='typeDetails[art]']").each(function() {
data['typeDetails[art]'].push($(this).val());
});
In my controller, I want to (1) make sure that there's a validation of required and (2) if the "games" array is present, perform a particular action and if the "art" array is present, perform a different action.
$typeDetails = Input::get('typeDetails');
if ($request->has('typeDetails.games'))
{
return 'games';
}
if ($request->has('typeDetails.art'))
{
return 'art';
}
What happens here is that in my console it properly returns 'games', but even if the "art" array has values and is sent with the request, it doesn't return 'art'. I must be missing a fundamental understanding with php here.
Thanks!
ANSWER
Here's how I got it to work.
$typeDetails = Input::get('typeDetails');
$this->validate($request, [
'typeDetails.*.*' => 'required|max:50'
],[
'required' => 'You must type in some keywords to continue.',
'max' => 'Your input must be less than 50 characters.'
]);
if ($request->has('typeDetails.games'))
{
$gameInfo = Input::get('typeDetails.games');
foreach ($gameInfo as $key => $value)
{
DB::table('user_type')->insert([
'user_id' => Auth::user()->id,
'type_id' => '1',
'user_type_details' => $value,
'created_at' => Carbon::now()
]);
}
}
if ($request->has('typeDetails.art'))
{
$artInfo = Input::get('typeDetails.art');
foreach ($artInfo as $key => $value)
{
DB::table('user_type')->insert([
'user_id' => Auth::user()->id,
'type_id' => '2',
'user_type_details' => $value,
'created_at' => Carbon::now()
]);
}
}