9.5/_string_frontend_8php_source.html

<?php

namespace ‪TYPO3\CMS\Core\Cache\Frontend;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Cache\Backend\BackendInterface;

use ‪TYPO3\CMS\Core\Cache\Exception\InvalidDataException;


class ‪StringFrontend extends ‪AbstractFrontend

{

    public function ‪__construct(‪$identifier, ‪BackendInterface ‪$backend)

    {

        trigger_error(

            sprintf(

                'Usage of class %s will be removed in TYPO3 v10.0, use %s instead',

                static::class,

                VariableFrontend::class

            ),

            E_USER_DEPRECATED

        );

        parent::__construct(‪$identifier, ‪$backend);

    }


    public function set($entryIdentifier, $string, array $tags = [], $lifetime = null)

    {

        if (!$this->‪isValidEntryIdentifier($entryIdentifier)) {

            throw new \InvalidArgumentException('"' . $entryIdentifier . '" is not a valid cache entry identifier.', 1233057566);

        }

        if (!is_string($string)) {

            throw new ‪InvalidDataException('Given data is of type "' . gettype($string) . '", but a string is expected for string cache.', 1222808333);

        }

        foreach ($tags as $tag) {

            if (!$this->‪isValidTag($tag)) {

                throw new \InvalidArgumentException('"' . $tag . '" is not a valid tag for a cache entry.', 1233057512);

            }

        }

        $this->backend->set($entryIdentifier, $string, $tags, $lifetime);

    }


    public function get($entryIdentifier)

    {

        if (!$this->‪isValidEntryIdentifier($entryIdentifier)) {

            throw new \InvalidArgumentException('"' . $entryIdentifier . '" is not a valid cache entry identifier.', 1233057752);

        }

        return $this->backend->get($entryIdentifier);

    }


    public function ‪getByTag($tag)

    {

        trigger_error('StringFrontend->getByTag() will be removed in TYPO3 v10.0. Avoid using this method since it is not compliant to PSR-6.', E_USER_DEPRECATED);

        if (!$this->‪isValidTag($tag)) {

            throw new \InvalidArgumentException('"' . $tag . '" is not a valid tag for a cache entry.', 1233057772);

        }

        $entries = [];

        $identifiers = $this->backend->findIdentifiersByTag($tag);

        foreach ($identifiers as ‪$identifier) {

            $entries[] = $this->backend->get(‪$identifier);

        }

        return $entries;

    }

}