Commit 1849f03afc7 for php.net

commit 1849f03afc7d1c87d9f25000e8fa5f33b3f35faf
Author: Weilin Du <weilindu@php.net>
Date:   Tue Sep 15 15:47:32 2026 +0800

    ext/standard: Optimize integer key insertion in array_change_key_case()

    Integer keys are copied unchanged from the input and remain unique in the
    new result. Use zend_hash_index_add_new() to avoid redundant checks.

diff --git a/ext/standard/array.c b/ext/standard/array.c
index 213402c7819..0df44f8242b 100644
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -4896,7 +4896,7 @@ PHP_FUNCTION(array_change_key_case)

 	ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(array), num_key, string_key, entry) {
 		if (!string_key) {
-			entry = zend_hash_index_update(Z_ARRVAL_P(return_value), num_key, entry);
+			entry = zend_hash_index_add_new(Z_ARRVAL_P(return_value), num_key, entry);
 		} else {
 			if (change_to_upper == PHP_CASE_UPPER) {
 				new_key = zend_string_toupper(string_key);