ID: 42211 Updated by: [EMAIL PROTECTED] Reported By: dominics at gmail dot com -Status: Assigned +Status: Closed Bug Type: Class/Object related Operating System: * PHP Version: 5.2.4RC1 Assigned To: dmitry New Comment:
This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2007-08-05 23:07:45] crrodriguez at suse dot de If this is not a bug, there is a bug in the documentation ;) --TEST-- #42211 property_exists( ) fails to find protected properties from a parent class --FILE-- <?php class A { function foo() { echo __CLASS__ ."\n"; var_dump(property_exists('B', 'publicBar')); var_dump(property_exists('B', 'protectedBar')); var_dump(property_exists('B', 'privateBar')); } } class B extends A { public $publicBar; protected $protectedBar; private $privateBar; function __construct() { echo __CLASS__ ."\n"; var_dump(property_exists('B', 'publicBar')); var_dump(property_exists('B', 'protectedBar')); var_dump(property_exists('B', 'privateBar')); } } $b = new B(); $b->foo(); echo "No scope\n"; var_dump(property_exists('B', 'publicBar')); var_dump(property_exists('B', 'protectedBar')); var_dump(property_exists('B', 'privateBar')); ?> --EXPECT-- B bool(true) bool(true) bool(true) A bool(true) bool(true) bool(false) No scope bool(true) bool(false) bool(false) Index: Zend/zend_builtin_functions.c =================================================================== RCS file: /repository/ZendEngine2/zend_builtin_functions.c,v retrieving revision 1.277.2.12.2.22 diff -u -p -r1.277.2.12.2.22 zend_builtin_functions.c --- Zend/zend_builtin_functions.c 2 Aug 2007 20:32:44 -0000 1.277.2.12.2.22 +++ Zend/zend_builtin_functions.c 5 Aug 2007 23:06:02 -0000 @@ -974,7 +974,7 @@ ZEND_FUNCTION(property_exists) if (!(property_info = zend_get_property_info(ce, *property, 1 TSRMLS_CC)) || property_info == &EG(std_property_info)) { RETURN_FALSE; } - if (property_info->flags & ZEND_ACC_PUBLIC) { + if (property_info->flags & ZEND_ACC_PUBLIC || ((property_info->flags & ZEND_ACC_PROTECTED) && zend_check_protected(property_info->ce, EG(scope)))) { RETURN_TRUE; } zend_unmangle_property_name(property_info->name, property_info->name_length, &class_name, &prop_name); ps: will be nice to have a "attachment feature" Cheers Cristian (aka judas_isc ;) ) ------------------------------------------------------------------------ [2007-08-05 14:14:36] dominics at gmail dot com Description: ------------ When using property_exists() from a parent class, and checking for the existence of a protected property in the subclass, property_exists() fails to find the property. The documentation for property_exists() says that the property must be 'accessible from the current scope'. In this case, the property _is_, because A is a parent class and protected visibility is defined in the documentation as 'limits access to inherited and parent classes'. As further evidence that protectedBar is accessible from foo(), trying to manipulate privateBar causes an error, while manipulating protectedBar doesn't. Reproduce code: --------------- <?php class A { function foo() { var_dump(property_exists('B', 'publicBar')); var_dump(property_exists('B', 'protectedBar')); var_dump(property_exists('B', 'privateBar')); } } class B extends A { public $publicBar; protected $protectedBar; private $privateBar; } $b = new B(); $b->foo(); Expected result: ---------------- bool(true) bool(true) bool(false) Actual result: -------------- bool(true) bool(false) bool(false) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=42211&edit=1
