#34703 [Opn->Bgs]: late binding for static calls

ID: 34703 Updated by: tony2001@php.net Reported By: pornel at despammed dot com -Status: Open +Status: Bogus Bug Type: Feature/Change Request Operating System: * PHP Version: 5.1.0RC1 New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2005-10-02 13:34:16] kowalski-kamil at wp dot pl I can afford to correct code: class Base { static function test1() {self::test2();} static function test2() {echo 'failure';} } class Child extends Base { static function test2() {echo 'success';} } Child::test1(); pornel - it's ok? ------------------------------------------------------------------------ [2005-10-02 13:16:37] kowalski-kamil at wp dot pl How do you want to use Base, if Child class is not linked to it? :D lol! ------------------------------------------------------------------------ [2005-10-02 00:18:34] pornel at despammed dot com Ooops, code example should have "class Child extends Base" and "Child::test1()", ofcourse. ------------------------------------------------------------------------ [2005-10-02 00:16:33] pornel at despammed dot com Description: ------------ In PHP it is not possible to write base class for singleton and similar programming patterns. I know it is intended behavior and backwards compatibility may make changes difficult, but there is significant number of complaints about current implementation: http://bugs.php.net/bug.php?id=30235 http://bugs.php.net/bug.php?id=30934 http://bugs.php.net/bug.php?id=30423 http://bugs.php.net/bug.php?id=19376 http://bugs.php.net/bug.php?id=26930 http://bugs.php.net/bug.php?id=28442 http://bugs.php.net/bug.php?id=29647 and I'd like to add another one. I'm trying to write functionality that works similar to ActiveRow implementation in RubyOnRails, but the way in which PHP handles static methods and inheritance makes such implementation impossible. I hope you could implement late binding for static calls and fields. It could be used with this:: construct instead of self::, which may be emulated for backwards compatiblity. Reproduce code: --------------- class Base { static function test1() {self::test2();} static function test2() {echo 'failure';} } class Child { static function test2() {echo 'success';} } Child::test(); Expected result: ---------------- success Actual result: -------------- failure backtrace doesn't contain reference to Child class (that would be enough for a workaround). ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=34703&edit=1