Laravel 5.3 database transaction issue? - laravel

Question

I have used more time with Laravel 5.0 on database transaction but when I change to Laravel 5.3.* it not work as I want even I have disabled commit() method all data still continue insert into database.
if ($request->isMethod('post')) {
DB::beginTransaction();
$cats = new Cat();
$cats->parent_id = $this->request->input('category_id');
$cats->status = ($this->request->input('status')) ? $this->request->input('status') : 0;
if ($res['cat'] = $cats->save()) {
$catD = new CategoryDescriptions();
$catD->category_id = $cats->id;
$catD->language_id = 1;
$catD->name = $this->request->input('en_name');
if ($res['cat2'] = $catD->save()) {
$catD2 = new CategoryDescriptions();
$catD2->category_id = $cats->id;
$catD2->language_id = 2;
$catD2->name = $this->request->input('kh_name');
$res['all'] = $catD2->save();
}
}
if ($res) {
//DB::commit();
return $res;
}
return [false];
}

Answer 1

Check this line ($res['cat'] is a boolean):
if($res['cat'] = $cats->save()) {
And this ($res is an array. You compare an array as boolean!):
if($res){
The right condition should be:
$res = array(); // the first line of your method
// .... your http method check, start transaction, etc.
if (!in_array(false, $res, true)) { // check if array doesn't contain 'false values'
DB::commit();
}