if you use this code n blank app:
$dataf=‘2017-12-05’;
$datai=‘1987-01-03’;
$res = sc_date_dif_2($datai, “yyyy-mm-dd”, $dataf, “yyyy-mm-dd”, 1);
$years = $res[2];
$mesi = $res[1];
$days = $res[0];
i get result bat i have error: undefined offset 13