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Fix property hook backing value access in multi-level inheritance

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Discovered by Niels when testing GH-17376.
This commit is contained in:
Ilija Tovilo 2025-02-26 20:47:38 +01:00
parent c8bead8393
commit 7a55116f12
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3 changed files with 74 additions and 1 deletions
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3
NEWS
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@ -2,6 +2,9 @@ PHP NEWS
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
?? ??? ????, PHP 8.4.6
- Core:
. Fixed property hook backing value access in multi-level inheritance.
(ilutov)
27 Feb 2025, PHP 8.4.5

70
Zend/tests/property_hooks/multi_level_inheritance.phpt Normal file
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@ -0,0 +1,70 @@
--TEST--
Property hooks with multi level inheritance
--FILE--
<?php
class A {
public $prop = 1;
}
class B extends A {
public $prop = 2 { get => parent::$prop::get() * 2; }
}
class C extends B {
public $prop = 3;
}
function test(A $a) {
var_dump($a);
var_dump((array)$a);
var_dump(unserialize(serialize($a)));
var_dump(get_object_vars($a));
var_dump(json_decode(json_encode($a)));
}
test(new B);
test(new C);
?>
--EXPECTF--
object(B)#%d (1) {
["prop"]=>
int(2)
}
array(1) {
["prop"]=>
int(2)
}
object(B)#%d (1) {
["prop"]=>
int(2)
}
array(1) {
["prop"]=>
int(4)
}
object(stdClass)#%d (1) {
["prop"]=>
int(4)
}
object(C)#%d (1) {
["prop"]=>
int(3)
}
array(1) {
["prop"]=>
int(3)
}
object(C)#%d (1) {
["prop"]=>
int(3)
}
array(1) {
["prop"]=>
int(6)
}
object(stdClass)#%d (1) {
["prop"]=>
int(6)
}

2
Zend/zend_inheritance.c
View file

@ -1436,7 +1436,7 @@ static void do_inherit_property(zend_property_info *parent_info, zend_string *ke
}
if (!(parent_info->flags & ZEND_ACC_PRIVATE)) {
if (!(parent_info->ce->ce_flags & ZEND_ACC_INTERFACE)) {
child_info->prototype = parent_info;
child_info->prototype = parent_info->prototype;
}
if (UNEXPECTED((parent_info->flags & ZEND_ACC_STATIC) != (child_info->flags & ZEND_ACC_STATIC))) {