Some packages have very special inheritence

[moufmouf]

For instance, in PHPUnit, the silverstripe/framework is making a weird redeclaration of the PHPUnit_Framework_TestCase class that messes up the "normal" inheritance we would expect.

http://packanalyst.mouf-php.com/class?q=PHPUnit_Framework_TestCase

[moufmouf]

Another sample: http://packanalyst.mouf-php.com/class?q=Monolog\Logger#

Monolog\Logger extends Sonno\Logger\LoggerInterface which is both true... for a very special use case, and false for most of us!