Debugging a Class Loader

2.1 新版功能: The DebugClassLoader class was introduced in Symfony 2.1.

The DebugClassLoader attempts to throw more helpful exceptions when a class isn’t found by the registered autoloaders. All autoloaders that implement a findFile() method are replaced with a DebugClassLoader wrapper.

Using the DebugClassLoader is as easy as calling its static enable() method:

use Symfony\Component\ClassLoader\DebugClassLoader;

DebugClassLoader::enable();