Tweaked some examples

components/cache/cache_items.rst

@@ -34,15 +34,15 @@ Cache items are created with the ``getItem($key)`` method of the cache pool. The
 argument is the key of the item::
 
  // $cache pool object was created before
- $cachedNumProducts = $cache->getItem('stats.num_products');
+ $numProducts = $cache->getItem('stats.num_products');
 
 Then, use the ``set($value)`` method to set the data stored in the cache item::
 
  // storing a simple integer
- $cachedNumProducts->set(4711);
+ $numProducts->set(4711);
 
  // storing an array
- $cachedNumProducts->set(array(
+ $numProducts->set(array(
  'category1' => 4711,
  'category2' => 2387,
  ));
@@ -56,7 +56,7 @@ Then, use the ``set($value)`` method to set the data stored in the cache item::
 The key and the value of any given cache item can be obtained with the
 corresponding *getter* methods::
 
- $cacheItem = $cache->getItem('logged_users');
+ $cacheItem = $cache->getItem('exchange_rate');
  // ...
  $key = $cacheItem->getKey();
  $value = $cacheItem->get();

components/cache/cache_pools.rst

@@ -11,7 +11,7 @@ Cache Pools are the logical repositories of cache items. They perform all the
 common operations on items, such as saving them or looking for them. Cache pools
 are independent from the actual cache implementation. Therefore, applications
 can keep using the same cache pool even if the underlying cache mechanism
-changes from a filesystem based cache to a Redis or database based cache.
+changes from a file system based cache to a Redis or database based cache.
 
 Creating Cache Pools
 --------------------

components/cache/introduction.rst

@@ -53,18 +53,18 @@ a filesystem-based cache, instantiate :class:`Symfony\\Component\\Cache\\Adapter
 Now you can create, retrieve, updated and delete items using this cache pool::
 
  // create a new item by trying to get it from the cache
- $cachedNumProducts = $cache->getItem('stats.num_products');
+ $numProducts = $cache->getItem('stats.num_products');
 
  // assign a value to the item and save it
- $cachedNumProducts->set(4711);
- $cache->save($cachedNumProducts);
+ $numProducts->set(4711);
+ $cache->save($numProducts);
 
  // retrieve the cache item
- $cachedNumProducts = $cache->getItem('stats.num_products');
+ $numProducts = $cache->getItem('stats.num_products');
  // check whether the item exists in the cache
- $isCached = $cachedNumProducts->isHit();
+ $isCached = $numProducts->isHit();
  // retrieve the value stored by the item
- $numProducts = $cachedNumProducts->get();
+ $total = $numProducts->get();
 
  // remove the cache item
  $cache->deleteItem('stats.num_products');