firefly-iii/app/Support/Http/Controllers/BasicDataSupport.php

<?php
/**
 * BasicDataSupport.php
 * Copyright (c) 2019 james@firefly-iii.org
 *
 * This file is part of Firefly III (https://github.com/firefly-iii).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace FireflyIII\Support\Http\Controllers;

/**
 * Trait BasicDataSupport
 *
 */
trait BasicDataSupport
{


    /**
     * Find the ID in a given array. Return '0' of not there (amount).
     *
     * @param array $array
     * @param int   $entryId
     *
     * @return null|mixed
     */
    protected function isInArray(array $array, int $entryId) // helper for data (math, calculations)
    {
        $result = $array[$entryId] ?? '0';

        return $result;
    }


}