@@ -58,6 +58,25 @@ contents as regular files in a set of directories on the local file system::
5858 $directory = null
5959 );
6060
61+ Php Files Cache Adapter
62+ ~~~~~~~~~~~~~~~~~~~~~~~
63+
64+ This adapter is very similar to the Filesystem adapter, except that the saving creates
65+ a ``.php `` file, which is included on fetch (allowing the file to me saved in OpCache)::
66+
67+ use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
68+
69+ $cache = new PhpFilesAdapter(
70+ // the subdirectory of the main cache directory where cache items are stored
71+ $namespace = '',
72+ // in seconds; applied to cache items that don't define their own lifetime
73+ // 0 means to store the cache items indefinitely (i.e. until the files are deleted)
74+ $defaultLifetime = 0,
75+ // the main cache directory (the application needs read-write permissions on it)
76+ // if none is specified, a directory is created inside the system temporary directory
77+ $directory = null
78+ );
79+
6180APCu Cache Adapter
6281~~~~~~~~~~~~~~~~~~
6382
@@ -189,6 +208,41 @@ This adapter also defines two optional arguments called ``namespace`` (default:
189208``'' ``) and ``defaultLifetime `` (default: ``0 ``) and adapts them to make them
190209work in the underlying Doctrine cache.
191210
211+ Php Array Cache Adapter
212+ ~~~~~~~~~~~~~~~~~~~~~~~
213+
214+ This adapter is a highly performant way to cache static data (e.g. application configuration)
215+ that is optimized and preloaded into OpCache memory storage::
216+
217+ use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
218+ use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
219+
220+ // somehow, decide it's time to warmup the cache!
221+ if ($needsWarmup) {
222+ // some static values
223+ $values = array(
224+ 'stats.num_products' => 4711,
225+ 'stats.num_users' => 1356,
226+ );
227+
228+ $cache = new PhpArrayAdapter(
229+ // single file where values are cached
230+ __DIR__ . '/somefile.cache',
231+ // a backup adapter, if you set values after warmup
232+ new FilesystemAdapter()
233+ );
234+ $cache->warmUp($values);
235+ }
236+
237+ // ... then, use the cache!
238+ $cacheItem = $cache->getItem('stats.num_users');
239+ echo $cacheItem->get();
240+
241+ ..note ::
242+
243+ This adapter requires PHP 7.x and should be used with the php.ini setting
244+ ``opcache.enable `` on.
245+
192246Looking for Cache Items
193247-----------------------
194248