@@ -96,8 +96,7 @@ value too using the ``realpath_cache_ttl`` option:
9696Use Composer's Class Map Functionality
9797--------------------------------------
9898
99- By default, the Symfony Standard Edition uses Composer's autoloader
100- in the `autoload.php `_ file. This autoloader is easy to use, as it will
99+ Symfony uses Composer's autoloader. This autoloader is easy to use, as it will
101100automatically find any new classes that you've placed in the registered
102101directories.
103102
@@ -125,82 +124,6 @@ your deploy process:
125124 Prevents Composer from scanning the file system for classes that are not
126125 found in the class map.
127126
128- Caching the Autoloader with APC
129- -------------------------------
130-
131- Another solution is to cache the location of each class after it's located
132- the first time. Symfony comes with a class -:class: `Symfony\\ Component\\ ClassLoader\\ ApcClassLoader ` -
133- that does exactly this. To use it, just adapt your front controller file.
134- If you're using the Standard Distribution, make the following changes::
135-
136- // app.php
137- // ...
138-
139- use Symfony\Component\ClassLoader\ApcClassLoader;
140-
141- // do not use $loader as a variable name here as it would
142- // be overwritten when loading the bootstrap.php.cache file
143- $classLoader = require __DIR__.'/../app/autoload.php';
144- include_once __DIR__.'/../app/bootstrap.php.cache';
145-
146- // Use APC for autoloading to improve performance
147- // Change 'sf2' by the prefix you want in order
148- // to prevent key conflict with another application
149- $loader = new ApcClassLoader('sf2', $classLoader);
150- $loader->register(true);
151-
152- // ...
153-
154- For more details, see:doc: `/components/class_loader/cache_class_loader `.
155-
156- ..note ::
157-
158- When using the APC autoloader, if you add new classes, they will be found
159- automatically and everything will work the same as before (i.e. no
160- reason to "clear" the cache). However, if you change the location of a
161- particular namespace or prefix, you'll need to flush your APC cache. Otherwise,
162- the autoloader will still be looking at the old location for all classes
163- inside that namespace.
164-
165- ..index ::
166- single: Performance; Bootstrap files
167-
168- Use Bootstrap Files
169- -------------------
170-
171- To ensure optimal flexibility and code reuse, Symfony applications leverage
172- a variety of classes and 3rd party components. But loading all of these classes
173- from separate files on each request can result in some overhead. To reduce
174- this overhead, the Symfony Standard Edition provides a script to generate
175- a so-called `bootstrap file `_, consisting of multiple classes definitions
176- in a single file. By including this file (which contains a copy of many of
177- the core classes), Symfony no longer needs to include any of the source files
178- containing those classes. This will reduce disc IO quite a bit.
179-
180- If you're using the Symfony Standard Edition, then you're probably already
181- using the bootstrap file. To be sure, open your front controller (usually
182- ``app.php ``) and check to make sure that the following line exists::
183-
184- include_once __DIR__.'/../var/bootstrap.php.cache';
185-
186- Note that there are two disadvantages when using a bootstrap file:
187-
188- * the file needs to be regenerated whenever any of the original sources change
189- (i.e. when you update the Symfony source or vendor libraries);
190-
191- * when debugging, one will need to place break points inside the bootstrap file.
192-
193- If you're using the Symfony Standard Edition, the bootstrap file is automatically
194- rebuilt after updating the vendor libraries via the ``composer install `` command.
195-
196- Bootstrap Files and Byte Code Caches
197- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
198-
199- Even when using a byte code cache, performance will improve when using a bootstrap
200- file since there will be fewer files to monitor for changes. Of course, if this
201- feature is disabled in the byte code cache (e.g. ``apc.stat=0 `` in APC), there
202- is no longer a reason to use a bootstrap file.
203-
204127Learn more
205128----------
206129
@@ -213,5 +136,3 @@ Learn more
213136.. _`APC` :http://php.net/manual/en/book.apc.php
214137.. _`APCu Polyfill component` :https://github.com/symfony/polyfill-apcu
215138.. _`APCu PHP functions` :http://php.net/manual/en/ref.apcu.php
216- .. _`autoload.php` :https://github.com/symfony/symfony-standard/blob/master/app/autoload.php
217- .. _`bootstrap file` :https://github.com/sensiolabs/SensioDistributionBundle/blob/master/Composer/ScriptHandler.php