Fix GH-10200: zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.

This occurs because the array of properties is a single element with an
integer key, not an associative array. Therefore it is a packed array
and thus the assumption the iteration macro makes is invalid.

This restores the behaviour of PHP<8.2.

Closes GH-10209

Co-authored-by: Deltik <deltik@gmx.com>

Signed-off-by: George Peter Banyard <girgias@php.net>

Author: nielsdos

NEWS

@@ -2,6 +2,10 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.2.2
 
+- Core:
+  . Fixed bug GH-10200 (zif_get_object_vars:
+    Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed). (nielsdos)
+
 - FPM:
   . Fixed bug #77106 (Missing separator in FPM FastCGI errors). (Jakub Zelenka)
   . Fixed bug GH-9981 (FPM does not reset fastcgi.error_header).

Zend/tests/gh10200.phpt

@@ -0,0 +1,20 @@
+--TEST--
+GH-10200 (zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.)
+--FILE--
+<?php
+
+$xmlData = <<<EOF
+<?xml version="1.0" encoding="utf-8"?>
+<document>https://github.com/php/php-src/issues/10200 not encountered</document>
+EOF;
+
+$xml = simplexml_load_string($xmlData);
+$output = get_object_vars($xml);
+var_dump($output);
+
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  string(59) "https://github.com/php/php-src/issues/10200 not encountered"
+}

Zend/zend_builtin_functions.c

@@ -760,7 +760,7 @@ ZEND_FUNCTION(get_object_vars)
 	} else {
 		array_init_size(return_value, zend_hash_num_elements(properties));
 
-		ZEND_HASH_MAP_FOREACH_KEY_VAL(properties, num_key, key, value) {
+		ZEND_HASH_FOREACH_KEY_VAL(properties, num_key, key, value) {
 			bool is_dynamic = 1;
 			if (Z_TYPE_P(value) == IS_INDIRECT) {
 				value = Z_INDIRECT_P(value);