ConfigCache example

    protected function initializeContainer()
    {
        /** @var class-string<Container> $class */
        $class = $this->getContainerClass();

        $cache = new ConfigCache(
            $this->config['hook']['proxyDir'] . '/' . $class . '.php',
            true // always check for file modified time         );

        if (!$cache->isFresh()) {
            $container = $this->buildContainer();
            $container->compile();

            $this->dumpContainer($cache, $container, $class, Container::class);
        }

        

    protected function initializeContainer()
    {
        $class = $this->getContainerClass();
        $buildDir = $this->warmupDir ?: $this->getBuildDir();
        $cache = new ConfigCache($buildDir.'/'.$class.'.php', $this->debug);
        $cachePath = $cache->getPath();

        // Silence E_WARNING to ignore "include" failures - don't use "@" to prevent silencing fatal errors         $errorLevel = error_reporting(\E_ALL ^ \E_WARNING);

        try {
            if (is_file($cachePath) && \is_object($this->container = include $cachePath)
                && (!$this->debug || (self::$freshCache[$cachePath] ?? $cache->isFresh()))
            ) {
                self::$freshCache[$cachePath] = true;
                $this->container->set('kernel', $this);