# jch-optimize/trunk/lib/src/Platform/UtilityInterface.php

JCH Optimize, version trunk. 121 lines.

- Page: https://pluginprobe.com/plugins/jch-optimize/trunk/code/lib/src/Platform/UtilityInterface.php
- Raw: https://pluginprobe.com/plugins/jch-optimize/trunk/raw/lib/src/Platform/UtilityInterface.php
- Modified: 2026-08-22T22:53:50+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
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```php
<?php

/**
 * JCH Optimize - Performs several front-end optimizations for fast downloads
 *
 * @package   jchoptimize/core
 * @author    Samuel Marshall <samuel@jch-optimize.net>
 * @copyright Copyright (c) 2022 Samuel Marshall / JCH Optimize
 * @license   GNU/GPLv3, or later. See LICENSE file
 *
 *  If LICENSE file missing, see <http://www.gnu.org/licenses/>.
 */

namespace JchOptimize\Core\Platform;

use JchOptimize\Core\Registry;
use stdClass;

use function defined;

defined('_JCH_EXEC') or die('Restricted access');

interface UtilityInterface
{
    /**
     *
     * @param string $text
     */
    public function translate(string $text): string;

    /**
     * Returns true if current user is not logged in
     *
     * @return bool
     */
    public function isGuest(): bool;

    public function sendHeaders(array $headers): void;

    /**
     * Returns array of response headers that are set or already sent
     */
    public function getHeaders(): array;

    /**
     *
     * @param string $userAgent
     */
    public function userAgent(string $userAgent): stdClass;

    /**
     * Indicates if current client is mobile
     *
     * @return bool
     */
    public function isMobile(): bool;

    /**
     * Returns a regular expression fragment that web-server rules can use to identify mobile user agents.
     */
    public function getMobileUserAgentPattern(): string;

    /**
     * Indicates whether Sec-CH-UA-Mobile takes precedence over user-agent detection on this platform.
     */
    public function usesMobileClientHint(): bool;

    /**
     * Indicates if page cache is enabled. If nativeCache is true then we're specifically checking the
     * jchoptimize page cache
     *
     * @param Registry $params
     * @param bool $nativeCache
     *
     * @return bool
     * @deprecated Use Cache::isPageCacheEnabled() instead
     */
    public function isPageCacheEnabled(Registry $params, bool $nativeCache = false): bool;

    /**
     * Should return one of the following based on the current configuration
     * filesystem, memcached, apcu, redis
     *
     * @param Registry $params
     *
     * @return string
     * @deprecated Use Cache::getCacheStorage() instead
     */
    public function getCacheStorage(Registry $params): string;

    /**
     * Should return the attribute used to store content values for popover that the version of Bootstrap
     * is using
     *
     * @return string
     */
    public function bsTooltipContentAttribute(): string;

    /**
     * @param string $message
     * @param string $messageType
     */
    public function publishAdminMessages(string $message, string $messageType);

    /**
     * Determines if the site is currently configured to compress the HTML using gzip
     *
     * @return bool
     */
    public function isSiteGzipEnabled(): bool;

    /**
     * Determines if request is on the admin site
     *
     * @return bool
     */
    public function isAdmin(): bool;

    public function getNonce(string $id): string;
}

```