--TEST-- ZE2 An interface must be implemented --SKIPIF-- <?php if (version_compare(zend_version(), '2.0.0-dev', '<')) die('skip ZendEngine 2 needed'); ?> --FILE-- <?php interface if_a { function f_a(); } class derived_a implements if_a { } ?> --EXPECTF-- Fatal error: Class derived_a contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (if_a::f_a) in %s on line %d