openstamanager/templates/scadenzario/bottom.php

<?php
/*
 * OpenSTAManager: il software gestionale open source per l'assistenza tecnica e la fatturazione
 * Copyright (C) DevCode s.r.l.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

include_once __DIR__.'/../../core.php';

$totale_da_pagare = sum(array_column($records, 'Importo'));
$totale_pagato = sum(array_column($records, 'Pagato'));

echo '
        <tr>
            <td colspan="4" class="text-right">
                <b>'.tr('Totale', [], ['upper' => true]).':</b>
            </td>
            <td class="text-right">'.moneyFormat($totale_da_pagare, 2).'</td>
            <td class="text-right">'.moneyFormat($totale_pagato, 2).'</td>
        </tr>
    </tbody>
</table>';