function cancella($idGara) { include "PresenzaManager.php"; $PresenzaManager = new PresenzaManager(); $listaPresenze = $PresenzaManager->listaGara($idGara); while ($listaPresenze_row = dbms_fetch_array($listaPresenze)) { return "-1"; } $query = "delete from gara where ID = " . $idGara; return connetti_query($query); }