#43483 [Opn]: get_class_methods() does not list all visible methods.

ID: 43483 Updated by: msaraujo@php.net Reported By: robin_fernandes at uk dot ibm dot com Status: Open Bug Type: Class/Object related Operating System: Windows PHP Version: 5.3CVS-2007-12-03 (snap) New Comment: I have reproduced the same issue on PHP 5.2.5 and PHP 5.3 (snapshot). There is patch here: http://jmcodex.com/patches/zend_builtin_functions.diff But not sure if it is a bug itself due to lack of specifications on docs. Previous Comments: ------------------------------------------------------------------------ [2007-12-03 13:46:17] robin_fernandes at uk dot ibm dot com The standard get_method handler (which is used to retrieve a method before executing it) uses zend_check_protected() to verify whether a protected method is accessible. zend_check_protected() returns true if the current scope is the same as, a child of OR a parent of the protected method's declaring class. However, get_class_methods() implements its own algorithm to filter out non visible methods. This algorithm excludes protected methods unless the current scope is an "instance of" the method's declaring class (so it is more restrictive than zend_check_protected()): [...] if ((mptr->common.fn_flags & ZEND_ACC_PUBLIC) || (EG(scope) && (((mptr->common.fn_flags & ZEND_ACC_PROTECTED) && instanceof_function(EG(scope), mptr->common.scope TSRMLS_CC)) || ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) && EG(scope) == mptr->common.scope)))) { [...] ------------------------------------------------------------------------ [2007-12-03 13:44:12] robin_fernandes at uk dot ibm dot com Description: ------------ get_class_methods() should list accessible private and protected methods if it is called from class scope (this is not stated explicitly in the doc, but is mentioned in Dmitry's comment to bug 32296). However, the testcase below shows a situation where, at a given scope, a method is accessible yet not listed by get_class_methods(). Specifically, this occurs with protected methods accessed from a superclass scope. Reproduced on php53 and php6 snaps on Windows. Reproduce code: --------------- <?php class C { public static function test() { D::prot(); var_dump(get_class_methods("D")); } } class D extends C { protected static function prot() { echo "Successfully called D::prot().\n"; } } C::test(); ?> Expected result: ---------------- Successfully called D::prot(). array(2) { [0]=> string(4) "prot" [1]=> string(4) "test" } Actual result: -------------- Successfully called D::prot(). array(1) { [0]=> string(4) "test" } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=43483&edit=1