#48665 [Opn->Bgs]: class_alias allows impossible classes

ID: 48665 Updated by: johannes@php.net Reported By: dams@php.net -Status: Open +Status: Bogus Bug Type: Class/Object related Operating System: Mac OS X Server 10.5.6 PHP Version: 5.3.0RC4 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php That's kind of expected and is consistent with with stuff like define(), ${'what ever'} and others. Previous Comments: ------------------------------------------------------------------------ [2009-06-23 16:29:37] dams@php.net Description: ------------ The original class is checked, but the checks a too lax on the alias itself. I suggest the alias's name should follow the same rules as the class itself. Admittedly, the following may work in conjunction with the problem reported : <?php class foo { } var_dump(class_alias('foo', '$$$')); $b = "$$$"; $a = new $b; var_dump($a); ?> Reproduce code: --------------- <?php class foo { } var_dump(class_alias('foo', '999')); var_dump(class_alias('foo', '')); var_dump(class_alias('foo', true)); var_dump(class_alias('foo', false)); var_dump(class_alias('foo', null)); var_dump(class_alias('foo', '$$$')); var_dump(class_alias('foo', ';;')); var_dump(class_alias('foo', '"')); var_dump(class_alias('foo', '::')); ?> Expected result: ---------------- bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) Actual result: -------------- bool(true) bool(true) bool(true) PHP Warning: Cannot redeclare class in /Users/alterway/bin/php- 5.3.0RC4/Zend/tests/- on line 8 Warning: Cannot redeclare class in /Users/alterway/bin/php- 5.3.0RC4/Zend/tests/- on line 8 bool(false) PHP Warning: Cannot redeclare class in /Users/alterway/bin/php- 5.3.0RC4/Zend/tests/- on line 9 Warning: Cannot redeclare class in /Users/alterway/bin/php- 5.3.0RC4/Zend/tests/- on line 9 bool(false) bool(true) bool(true) bool(true) bool(true) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=48665&edit=1