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<?php $data = '[{"id":"1","title":"Title 1","answer":"True"},{"id":"1","title":"Title 1","answer":"False"}]'; $data = json_decode($data); $data2=array(); $count=0; foreach($data as $l){ if ($count % 2 == 0){ $data2[$count]=array( "id" =>$l->id, "title"=>$l->title, ); $data2[$count]['answer'] = []; $data2[$count]['answer'][] = $l->answer; } else { $data2[$count-1]['answer'][] = $l->answer; } $count++; } print_r(json_encode($data2));

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