2
ZE2 An interface must be implemented
4
<?php if (version_compare(zend_version(), '2.0.0-dev', '<')) die('skip ZendEngine 2 needed'); ?>
12
class derived_a implements if_a {
17
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