composer require php-cache/adapter-files
use Cache\Adapter\Filesystem\FilesystemCachePool; use Symfony\Component\Cache\Adapter\Psr16Adapter; // Create a new cache pool $cachePool = new FilesystemCachePool(); // Create a new cache adapter $cacheAdapter = new Psr16Adapter($cachePool); // Render the template (this function would need to be implemented) $template = renderTemplate($data); // Save the rendered template to the cache $cacheAdapter->set('template_cache_key', $template); // Check if the template is in the cache if ($cacheAdapter->has('template_cache_key')) { // Get the cached template $template = $cacheAdapter->get('template_cache_key'); // Output the cached template echo $template; } else { // If the template is not in the cache, render it $template = renderTemplate($data); // Output the rendered template echo $template; }In this example, we use the php-cache/adapter-files library to create a new cache pool, and then create a new cache adapter using the Symfony component Psr16Adapter. We then render the template using a hypothetical renderTemplate() function, and save the rendered template to the cache using the cache adapter's set() method. Finally, we check if the template is in the cache using the adapter's has() method, and if it is, we output the cached template. If it is not, we render the template and output it. Based on the example, the package library used is php-cache/adapter-files.