Commit be2bebfc by Qiang Xue

Merge pull request #6158 from cdvrooman/patch-20

Update concept-autoloading.md
parents 25d05b2a 7d52bda6
......@@ -2,7 +2,7 @@ Class Autoloading
=================
Yii relies on the [class autoloading mechanism](http://www.php.net/manual/en/language.oop5.autoload.php)
to locate and include all required class files. It provides a high-performance class autoloader that is compliant to the
to locate and include all required class files. It provides a high-performance class autoloader that is compliant with the
[PSR-4 standard](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader.md).
The autoloader is installed when you include the `Yii.php` file.
......@@ -33,8 +33,7 @@ namespace `app` so that they can be autoloaded by Yii without the need of defini
can be resolved into the class file `AppBasePath/components/MyClass.php`, according to the algorithm just described.
In the [Advanced Application Template](tutorial-advanced-app.md), each tier has its own root alias. For example,
the front-end tier has a root alias `@frontend`, while the back-end tier `@backend`. As a result, you may
put the front-end classes under the namespace `frontend` while the back-end classes are under `backend`. This will
the front-end tier has a root alias `@frontend`, while the back-end tier root alias is `@backend`. As a result, you may put the front-end classes under the namespace `frontend` while the back-end classes are under `backend`. This will
allow these classes to be autoloaded by the Yii autoloader.
......@@ -43,7 +42,7 @@ Class Map <a name="class-map"></a>
The Yii class autoloader supports the *class map* feature, which maps class names to the corresponding class file paths.
When the autoloader is loading a class, it will first check if the class is found in the map. If so, the corresponding
file path will be included directly without further check. This makes class autoloading super fast. In fact,
file path will be included directly without further checks. This makes class autoloading super fast. In fact,
all core Yii classes are autoloaded this way.
You may add a class to the class map, stored in `Yii::$classMap`, using:
......
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