derickr/xdebug — pull request #24 by patrickallaert (2012-04-30 22:22:24+00:00)
Title: Added compatibility with other extensions modifying zend_error_cb

Since Xdebug doesn't call the previously defined error callback but replaces it, find a way to make it coexist with other extensions that replaces the error callback at RINIT, like APM.