Edit report at https://bugs.php.net/bug.php?id=63816&edit=1
ID: 63816 User updated by: kotlyar dot maksim at gmail dot com Reported by: kotlyar dot maksim at gmail dot com Summary: implementation child interface and after parent cause fatal error. Status: Open Type: Bug Package: Scripting Engine problem Operating System: linux -PHP Version: 5.4.10 +PHP Version: 5.4.7 Block user comment: N Private report: N New Comment: Change php version Previous Comments: ------------------------------------------------------------------------ [2012-12-20 15:29:23] kotlyar dot maksim at gmail dot com Description: ------------ Order of implemented interfaces should make any difference. But it is not the case. If I implement child interface and parent after I will get a fatal error Test script: --------------- <?php ini_set('display_errors', 1); error_reporting(-1); interface RootInterface { function foo(); } interface FirstChildInterface extends RootInterface { function foo(); } interface SecondChildInterface extends RootInterface { function foo(); } //works fine. class A implements FirstChildInterface, SecondChildInterface { function foo() { } } //also ok. class B implements RootInterface, FirstChildInterface { function foo() { } } //there is a fatal error. class C implements FirstChildInterface, RootInterface { function foo() { } } Expected result: ---------------- Should work without errors(as previous examples). Actual result: -------------- PHP Fatal error: Class C cannot implement previously implemented interface RootInterface in /foo/test.php on line 35 PHP Stack trace: PHP 1. {main}() /foo/test.php:0 Fatal error: Class C cannot implement previously implemented interface RootInterface in /foo/test.php on line 35 Call Stack: 0.0008 238784 1. {main}() /foo/test.php:0 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63816&edit=1