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<?php $a = '[{"COLUMN_NAME":"ORDER_NO","COLUMN_TITLE":"Order Number"},{"COLUMN_NAME":"CUSTOMER_NO","COLUMN_TITLE":"Customer Number"}]'; $b = '[{"COLUMN_NAME":"ORDER_NO","DEFAULT_VALUE":"1521"},{"COLUMN_NAME":"CUSTOMER_NO","DEFAULT_VALUEE":"C1435"}]'; $r = []; foreach(json_decode($a, true) as $key => $arra){ $r[$key] = array_merge(json_decode($b, true)[$key],$arra); } echo json_encode($r);

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