Source of file Enum.php

<?php

/* This file is part of NextDom Software.

 *

 * NextDom 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.

 *

 * NextDom 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 NextDom. If not, see <http://www.gnu.org/licenses/>.

 */

namespace NextDom\Enums;

use NextDom\Exceptions\OperatingSystemException;

/**

 * Class Enum

 * @package NextDom\Enums

 */

abstract class Enum

{

    /**

     * @param $needle

     * @return bool

     * @throws OperatingSystemException

     * @throws \ReflectionException

     */

    public static function exists($needle): bool

    {

        return in_array($needle, self::getConstants());

    }

    /**

     * Get list of all constants

     *

     * @return array List of all constants

     *

     * @throws \ReflectionException

     * @throws OperatingSystemException

     */

    public static function getConstants()

    {

        $calledClass = get_called_class();

        if ($calledClass !== false) {

            return (new \ReflectionClass($calledClass))->getConstants();

        } else {

            throw new OperatingSystemException('Error during calling class', 500);

        }

    }

    /**

     * @return array

     * @throws OperatingSystemException

     * @throws \ReflectionException

     */

    public static function getValues()

    {

        return array_values(self::getConstants());

    }

}