CakePHP uses the exceptions internally to show the logical cake PHP errors. All of the exceptions that occur in CakePHP raises a CakeException.

CakePHP is also having the number of exception classes that we can use for HTTP errors.

For congiguring exceptions in cakePHP we can use the code below

Configure::write('Exception', array(
'handler' => 'ErrorHandler::handleException',//The callback to handle exceptions. You can set this to any callback type,
'renderer' => 'ExceptionRenderer',// The class responsible for rendering uncaught exceptions.
'log' => true // boolean - When true, exceptions + their stack traces will be logged to CakeLog.
));

If we changes the handler then this changing will allows us to take full control over the exception handling process. If we change the renderer , it allows us to change the output .

Exception classes

There are a number of exception classes in CakePHP. Each exception replaces a cakeError() error messages.

There are several built-in exceptions inside CakePHP -->

1-exception BadRequestException Used for doing 400 Bad Request error.

2-exception UnauthorizedException Used for doing a 401 Unauthorized error.

3-exception ForbiddenException Used for doing a 403 Forbidden error.

4-exception NotFoundException Used for doing a 404 Not found error.

5-exception MethodNotAllowedException Used for doing a 405 Method Not Allowed error.

6-exception InternalErrorException Used for doing a 500 Internal Server Error.

7-exception NotImplementedException Used for doing a 501 Not Implemented Errors.