Yii Framework Analysis (7) -- Yii exception handling process

Yii Framework Analysis (7) -- Yii exception handling process

The exception handling component works with CApplication to handle all exceptions (uncaptured ). It can be seen that CApplication registers its handleException/handleError method as an event handling handle, that is, CApplication obtains all exceptions, and then delivers it to the exception handling component for processing. The main task of exception handling is to display exceptions to the browser. generally, exceptions are presented to an Action. for a normal request, an exception page is returned. for an ajax request, then, a json file is returned, which is displayed by the browser javascript.