ModifyCacheLifetimeForPageEvent

New in version 12.0: This event serves as a successor for the $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['get_cache_timeout'] hook.

This event allows to modify the lifetime of how long a rendered page of a frontend call should be stored in the "pages" cache.

Example

The following listener limits the cache lifetime to 30 seconds in development context:

EXT:my_extension/Classes/Frontend/EventListener/MyEventListener.php

<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\Frontend\EventListener;

use TYPO3\CMS\Core\Attribute\AsEventListener;
use TYPO3\CMS\Core\Core\Environment;
use TYPO3\CMS\Frontend\Event\ModifyCacheLifetimeForPageEvent;

#[AsEventListener(
    identifier: 'my-extension/cache-timeout'
)]
final class MyEventListener
{
    public function __invoke(ModifyCacheLifetimeForPageEvent $event): void
    {
        // Only cache all pages for 30 seconds when in development context
        if (Environment::getContext()->isDevelopment()) {
            $event->setCacheLifetime(30);
        }
    }
}

New in version 13.0: The PHP attribute \TYPO3\CMS\Core\Attribute\AsEventListener has been introduced to tag a PHP class as an event listener. Alternatively, or if you need to be compatible with older TYPO3 versions, you can also register an event listener via the Configuration/Services.yaml file. Switch to an older version of this page for an example or have a look at the section Implementing an event listener in your extension.

API

class TYPO3\CMS\Frontend\Event\ModifyCacheLifetimeForPageEvent

Event to allow listeners to modify the amount of seconds that a generated frontend page should be cached in the "pages" cache when initially generated.

setCacheLifetime(int $cacheLifetime)

Parameters

• $cacheLifetime (int) -- the cacheLifetime

getCacheLifetime()

Return type

int

getPageId()

Return type

int

getPageRecord()

Return type

array

getRenderingInstructions()

Return type

array

getContext()

Return type

TYPO3\CMS\Core\Context\Context