prepare($sql); $stmt->bind_param("sss",$email,$username,$hashpw); if($stmt->execute()){ header("location:index.php"); exit(); }else{ if($stmt->erno==1602){ $_SESSION['flash'] = "email atau username sudah pernah terdaftar"; }else{ $_SESSION['flash'] = "Regitrasi gagal: ".$stmt->error; } } $stmt -> close(); } }$db->close() ?>