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();