#46705 [NEW]: Impossible to implement compatible interfaces

From: wrzasq at gmail dot com Operating system: Debian GNU/Linux PHP version: 5.2.6 PHP Bug Type: Scripting Engine problem Bug description: Impossible to implement compatible interfaces Description: ------------ It is impossible to implement multiple interfaces that declares same methods. I saw bug #43200 but this is a bit different case and I think in this situation it shoud be allowed - those interfaces requires methods with same signature (also to prevent further problems - optional parameters should also be allowed to match signatures): Reproduce code: --------------- <?php interface A { public function foo(); } interface B { public function foo(); } class C implements A, B { public function foo(){} } Expected result: ---------------- nothing, but working Actual result: -------------- Fatal error: Can't inherit abstract function B::foo() (previously declared abstract in A) in /home/wrzasq/Desktop/Www/engine/- on line 16 -- Edit bug report at http://bugs.php.net/?id=46705&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46705&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46705&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46705&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46705&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46705&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46705&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46705&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46705&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46705&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46705&r=support Expected behavior: http://bugs.php.net/fix.php?id=46705&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46705&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46705&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46705&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46705&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46705&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46705&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46705&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46705&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46705&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46705&r=mysqlcfg