$question_attempt =$question_attempt + json_decode($data[0]->question_attempt,true);
array_merge not work with keys
$question_ids = array_merge($question_ids,json_decode($data[0]->question_ids,true));
in Advertisement, Laravel, Php
$question_attempt =$question_attempt + json_decode($data[0]->question_attempt,true);
array_merge not work with keys
$question_ids = array_merge($question_ids,json_decode($data[0]->question_ids,true));