From 13c99651fc7bbcc7199e1e449d9e158752caf6ce Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipe@php.net>
Date: Fri, 10 Dec 2010 23:58:33 +0000
Subject: [PATCH] - Fixed bug #53515 (property_exists incorrect on ArrayObject
 null and 0 values)

---
 ext/spl/spl_array.c         | 22 ++++++++++++++++++----
 ext/spl/tests/bug53515.phpt | 27 +++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 4 deletions(-)
 create mode 100644 ext/spl/tests/bug53515.phpt

diff --git a/ext/spl/spl_array.c b/ext/spl/spl_array.c
index 22b105b09e..e060baf674 100755
--- a/ext/spl/spl_array.c
+++ b/ext/spl/spl_array.c
@@ -569,8 +569,15 @@ static int spl_array_has_dimension_ex(int check_inherited, zval *object, zval *o
 	switch(Z_TYPE_P(offset)) {
 	case IS_STRING:
 		if (check_empty) {
-			if (zend_symtable_find(spl_array_get_hash_table(intern, 0 TSRMLS_CC), Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &tmp) != FAILURE && zend_is_true(*tmp)) {
-				return 1;
+			if (zend_symtable_find(spl_array_get_hash_table(intern, 0 TSRMLS_CC), Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &tmp) != FAILURE) {
+				switch (check_empty) {
+					case 0:
+						return Z_TYPE_PP(tmp) != IS_NULL;
+					case 2:
+						return 1;
+					default:
+						return zend_is_true(*tmp);
+				}
 			}
 			return 0;
 		} else {
@@ -587,8 +594,15 @@ static int spl_array_has_dimension_ex(int check_inherited, zval *object, zval *o
 		}
 		if (check_empty) {
 			HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
-			if (zend_hash_index_find(ht, index, (void **)&tmp) != FAILURE && zend_is_true(*tmp)) {
-				return 1;
+			if (zend_hash_index_find(ht, index, (void **)&tmp) != FAILURE) {
+				switch (check_empty) {
+					case 0:
+						return Z_TYPE_PP(tmp) != IS_NULL;
+					case 2:
+						return 1;
+					default:
+						return zend_is_true(*tmp);
+				}
 			}
 			return 0;
 		} else {
diff --git a/ext/spl/tests/bug53515.phpt b/ext/spl/tests/bug53515.phpt
new file mode 100644
index 0000000000..f99840e322
--- /dev/null
+++ b/ext/spl/tests/bug53515.phpt
@@ -0,0 +1,27 @@
+--TEST--
+Bug #53515 (property_exists incorrect on ArrayObject null and 0 values)
+--FILE--
+<?php
+
+$a = array('a' => 1, 'b'=> true, 'c' => 0, 'd' => null, 'e' => false, 'f' => array());
+$o = new ArrayObject($a, ArrayObject::ARRAY_AS_PROPS);
+
+$a['z'] = '';
+$a[''] = '';
+
+foreach ($a as $key => $value) {
+ echo $key . ': ' . (is_null($value) ? 'null' : $value) . 
+    ' array_key_exists: ' . (array_key_exists($key, $a) ? 'true' : 'false') . 
+    ' property_exists: ' . (property_exists($o, $key) ? 'true' : 'false'),"\n";
+}
+
+?>
+--EXPECT--
+a: 1 array_key_exists: true property_exists: true
+b: 1 array_key_exists: true property_exists: true
+c: 0 array_key_exists: true property_exists: true
+d: null array_key_exists: true property_exists: true
+e:  array_key_exists: true property_exists: true
+f: Array array_key_exists: true property_exists: true
+z:  array_key_exists: true property_exists: false
+:  array_key_exists: true property_exists: false
-- 
2.40.0