Online PHP editor | refs for L8KUE

<?php $arr = [ 0 => [ "u_id" => "9", "u_name" => "Souhaila S.", "r_nb_today" => "7", ], 1 => [ "u_id" => "59", "u_name" => "Cirine E.", "r_nb_today" => "2", ], 2 => [ "u_id" => "64", "u_name" => "Cyrine B.", "r_nb_today" => "1", ], 3 => [ "u_id" => "8", "u_name" => "Jihen B. R.", "r_nb_today" => "1", ], 4 => [ "u_id" => "18", "u_name" => "Otail J.", "r_nb_today" => "0", ], 5 => [ "u_id" => "15", "u_name" => "Rim H.", "r_nb_today" => "0", ], 6 => [ "u_id" => "12", "u_name" => "Bassem D.", "r_nb_today" => "0", ], 7 => [ "u_id" => "75", "u_name" => "Mariem N.", "r_nb_today" => "0", ], 8 => [ "u_id" => "66", "u_name" => "Khaoula K.", "r_nb_today" => "0", ], 9 => [ "u_id" => "74", "u_name" => "Ghada J.", "r_nb_today" => "0", ], 10 => [ "u_id" => "62", "u_name" => "Alaeddine M.", "r_nb_today" => "0", ], 11 => [ "u_id" => "79", "u_name" => "Khaled B.", "r_nb_today" => "0", ], 12 => [ "u_id" => "71", "u_name" => "Desiree Y.", "r_nb_today" => "0", ], ]; $r_nb_today = array_column($arr, 'r_nb_today'); $u_name = array_column($arr, 'u_name'); array_multisort($r_nb_today, SORT_NUMERIC, SORT_DESC, $u_name, SORT_NATURAL, SORT_DESC, $arr); print_r($arr);die;