andrey-helldar / support

src/Helpers/OS.php

<?php
/*
 * This file is part of the "andrey-helldar/support" project.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author Andrey Helldar <helldar@ai-rus.com>
 *
 * @copyright 2021 Andrey Helldar
 *
 * @license MIT
 *
 * @see https://github.com/andrey-helldar/support
 */

namespace Helldar\Support\Helpers;

use Helldar\Support\Facades\Helpers\Str as StrHelper;

/**
 * @see https://www.php.net/manual/ru/reserved.constants.php
 */
class OS
{
    public function isUnix(): bool
    {
        return ! $this->isWindows() && ! $this->isUnknown();
    }

    public function isWindows(): bool
    {
        return $this->family() === 'windows';
    }

    public function isBSD(): bool
    {
        return $this->family() === 'bsd';
    }

    public function isDarwin(): bool
    {
        return $this->family() === 'darwin';
    }

    public function isSolaris(): bool
    {
        return $this->family() === 'solaris';
    }

    public function isLinux(): bool
    {
        return $this->family() === 'linux';
    }

    public function isUnknown(): bool
    {
        return $this->family() === 'unknown';
    }

    public function family(bool $lower = true): string
    {
        $family = version_compare(PHP_VERSION, '7.2', '<') ? PHP_OS : PHP_OS_FAMILY;

        return $lower ? StrHelper::lower($family) : $family;

The expression return $lower ? Helldar\Support\Facades\Helpers\Str::lower($family) : $family could return the type null which is incompatible with the type-hinted return string. Consider adding an additional type-check to rule them out.

    }
}