2FAuth/app/Helpers/Helpers.php

<?php

namespace App\Helpers;

use Illuminate\Support\Str;

class Helpers
{
    /**
     * Generate a unique filename
     *
     * @param  string  $extension
     * @return string The filename
     */
    public static function getUniqueFilename(string $extension) : string
    {
        return Str::random(40) . '.' . $extension;
    }

    /**
     * Clean a version number string
     *
     * @param  string|null  $release
     * @return string|false
     */
    public static function cleanVersionNumber(?string $release) : string|false
    {
        // We use the regex for semver detection (see https://semver.org/)
        return preg_match('/(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?/', $release, $version) ? $version[0] : false;
    }
}