diff --git a/UPGRADING b/UPGRADING
index fec4b15c102b..830709b2ae23 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -142,6 +142,9 @@ PHP 8.6 UPGRADE NOTES
   . EAI_INTR.
   . EAI_IDN_ENCODE.
 
+- Standard
+  . ARRAY_FILTER_USE_KEY.
+
 ========================================
 11. Changes to INI File Handling
 ========================================
diff --git a/ext/standard/basic_functions.stub.php b/ext/standard/basic_functions.stub.php
index 4ad26063a671..4f77cf9b7f8e 100644
--- a/ext/standard/basic_functions.stub.php
+++ b/ext/standard/basic_functions.stub.php
@@ -1871,7 +1871,7 @@ function array_product(array $array): int|float {}
 
 function array_reduce(array $array, callable $callback, mixed $initial = null): mixed {}
 
-function array_filter(array $array, ?callable $callback = null, int $mode = 0): array {}
+function array_filter(array $array, ?callable $callback = null, int $mode = ARRAY_FILTER_USE_KEY): array {}
 
 function array_find(array $array, callable $callback): mixed {}
 
diff --git a/ext/standard/basic_functions_arginfo.h b/ext/standard/basic_functions_arginfo.h
index 2a1aa634fcda..d63ea5e4e488 100644
--- a/ext/standard/basic_functions_arginfo.h
+++ b/ext/standard/basic_functions_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit basic_functions.stub.php instead.
- * Stub hash: a4324854949e2df355625c18a4e26d066c8f7a17 */
+ * Stub hash: 9857f77dbcc832992bf6b20b02d4b81dad8909b2 */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_set_time_limit, 0, 1, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, seconds, IS_LONG, 0)
@@ -345,7 +345,7 @@ ZEND_END_ARG_INFO()
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_array_filter, 0, 1, IS_ARRAY, 0)
 	ZEND_ARG_TYPE_INFO(0, array, IS_ARRAY, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, callback, IS_CALLABLE, 1, "null")
-	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, mode, IS_LONG, 0, "0")
+	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, mode, IS_LONG, 0, "ARRAY_FILTER_USE_KEY")
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_array_find, 0, 2, IS_MIXED, 0)