setTtl example

    public function run(?RouteCollectionInterface $routes = null, bool $returnResponse = false)
    {
        if ($this->context === null) {
            throw new LogicException(
                'Context must be set before run() is called. If you are upgrading from 4.1.x, '
                . 'you need to merge `public/index.php` and `spark` file from `vendor/codeigniter4/framework`.'
            );
        }

        $this->pageCache->setTtl(0);
        $this->bufferLevel = ob_get_level();

        $this->startBenchmark();

        $this->getRequestObject();
        $this->getResponseObject();

        $this->spoofRequestMethod();

        try {
            $this->response = $this->handleRequest($routes, config(Cache::class), $returnResponse);
        }

    /** * How long to cache the current page for. * * @params int $time time to live in seconds. * * @return void */
    protected function cachePage(int $time)
    {
        Services::responsecache()->setTtl($time);
    }

    /** * Handles "auto-loading" helper files. * * @deprecated Use `helper` function instead of using this method. * * @codeCoverageIgnore * * @return void */
    

        if (!$response->headers->has('Date')) {
            $response->setDate(\DateTimeImmutable::createFromFormat('U', time()));
        }

        $this->processResponseBody($request, $response);

        if ($this->isPrivateRequest($request) && !$response->headers->hasCacheControlDirective('public')) {
            $response->setPrivate();
        } elseif ($this->options['default_ttl'] > 0 && null === $response->getTtl() && !$response->headers->getCacheControlDirective('must-revalidate')) {
            $response->setTtl($this->options['default_ttl']);
        }

        return $response;
    }

    /** * Checks whether the cache entry is "fresh enough" to satisfy the Request. */
    protected function isFreshEnough(Request $request, Response $entry): bool
    {
        if (!$entry->isFresh()) {
            

        if (!$response->headers->has('Date')) {
            $response->setDate(\DateTimeImmutable::createFromFormat('U', time()));
        }

        $this->processResponseBody($request, $response);

        if ($this->isPrivateRequest($request) && !$response->headers->hasCacheControlDirective('public')) {
            $response->setPrivate();
        } elseif ($this->options['default_ttl'] > 0 && null === $response->getTtl() && !$response->headers->getCacheControlDirective('must-revalidate')) {
            $response->setTtl($this->options['default_ttl']);
        }

        return $response;
    }

    /** * Checks whether the cache entry is "fresh enough" to satisfy the Request. */
    protected function isFreshEnough(Request $request, Response $entry): bool
    {
        if (!$entry->isFresh()) {
            

public function testIsCacheableWithNoStoreDirective()
    {
        $response = new Response();
        $response->headers->set('cache-control', 'private');
        $this->assertFalse($response->isCacheable());
    }

    public function testIsCacheableWithSetTtl()
    {
        $response = new Response();
        $response->setTtl(10);
        $this->assertTrue($response->isCacheable());
    }

    public function testMustRevalidate()
    {
        $response = new Response();
        $this->assertFalse($response->mustRevalidate());
    }

    public function testMustRevalidateWithMustRevalidateCacheControlHeader()
    {