From 1bf49ee7d5186a0c68e23c562d59fc8c746393ad Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Wed, 12 Mar 2025 20:07:34 +0000
Subject: [PATCH] ext/intl: fix locale_compose/locale_lookup to be able to deal
 with references.

---
 NEWS                                          |  4 +++
 ext/intl/locale/locale_methods.c              |  8 +++--
 .../locale_compose_lookup_references.phpt     | 29 +++++++++++++++++++
 3 files changed, 38 insertions(+), 3 deletions(-)
 create mode 100644 ext/intl/tests/locale_compose_lookup_references.phpt

diff --git a/NEWS b/NEWS
index e899b8ac86ce..39ee4c46becd 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,10 @@ PHP                                                                        NEWS
   . Fixed bug GH-17984 (calls with arguments as array with references).
     (David Carlier)
 
+- Intl:
+  . Fix locale_compose and locale_lookup to work with their array argument
+    with values as references. (David Carlier)
+
 - Embed:
   . Fixed bug GH-8533 (Unable to link dynamic libphp on Mac). (Kévin Dunglas)
 
diff --git a/ext/intl/locale/locale_methods.c b/ext/intl/locale/locale_methods.c
index d6053b6be56d..f810a61b6be1 100644
--- a/ext/intl/locale/locale_methods.c
+++ b/ext/intl/locale/locale_methods.c
@@ -814,7 +814,7 @@ static int append_key_value(smart_str* loc_name, HashTable* hash_arr, char* key_
 {
 	zval *ele_value;
 
-	if ((ele_value = zend_hash_str_find(hash_arr , key_name, strlen(key_name))) != NULL ) {
+	if ((ele_value = zend_hash_str_find_deref(hash_arr , key_name, strlen(key_name))) != NULL ) {
 		if(Z_TYPE_P(ele_value)!= IS_STRING ){
 			/* element value is not a string */
 			return FAILURE;
@@ -857,7 +857,7 @@ static int append_multiple_key_values(smart_str* loc_name, HashTable* hash_arr,
 	int 	isFirstSubtag 	= 0;
 
 	/* Variant/ Extlang/Private etc. */
-	if ((ele_value = zend_hash_str_find( hash_arr , key_name , strlen(key_name))) != NULL) {
+	if ((ele_value = zend_hash_str_find_deref( hash_arr , key_name , strlen(key_name))) != NULL) {
 		if( Z_TYPE_P(ele_value) == IS_STRING ){
 			add_prefix( loc_name , key_name);
 
@@ -869,6 +869,7 @@ static int append_multiple_key_values(smart_str* loc_name, HashTable* hash_arr,
 			zval *data;
 
 			ZEND_HASH_FOREACH_VAL(arr, data) {
+				ZVAL_DEREF(data);
 				if(Z_TYPE_P(data) != IS_STRING) {
 					return FAILURE;
 				}
@@ -900,7 +901,7 @@ static int append_multiple_key_values(smart_str* loc_name, HashTable* hash_arr,
 		isFirstSubtag = 0;
 		for( i=0 ; i< max_value; i++ ){
 			snprintf( cur_key_name , 30, "%s%d", key_name , i);
-			if ((ele_value = zend_hash_str_find( hash_arr , cur_key_name , strlen(cur_key_name))) != NULL) {
+			if ((ele_value = zend_hash_str_find_deref( hash_arr , cur_key_name , strlen(cur_key_name))) != NULL) {
 				if( Z_TYPE_P(ele_value)!= IS_STRING ){
 					/* variant is not a string */
 					return FAILURE;
@@ -1437,6 +1438,7 @@ static zend_string* lookup_loc_range(const char* loc_range, HashTable* hash_arr,
 
 	char **cur_arr = ecalloc(zend_hash_num_elements(hash_arr)*2, sizeof(char *));
 	ZEND_HASH_FOREACH_VAL(hash_arr, ele_value) {
+		ZVAL_DEREF(ele_value);
 	/* convert the array to lowercase , also replace hyphens with the underscore and store it in cur_arr */
 		if(Z_TYPE_P(ele_value)!= IS_STRING) {
 			/* element value is not a string */
diff --git a/ext/intl/tests/locale_compose_lookup_references.phpt b/ext/intl/tests/locale_compose_lookup_references.phpt
new file mode 100644
index 000000000000..f6a202f7512f
--- /dev/null
+++ b/ext/intl/tests/locale_compose_lookup_references.phpt
@@ -0,0 +1,29 @@
+--TEST--
+locale_compose()/locale_lookup() with values as references.
+--EXTENSIONS--
+intl
+--FILE--
+<?php
+
+$en = 'en';
+$data = [Locale::LANG_TAG => 'en', Locale::REGION_TAG => &$en];
+
+var_dump(locale_compose($data));
+
+$data = [
+	'language' => 'de', 
+	'script' => 'Hans',
+	'region' => 'DE',
+	'variant2' => 'fr',
+	'variant1' => &$en,
+	'private1' => 'private1',
+	'private2' => 'private2',
+	];
+var_dump(locale_compose($data));
+$data = ['de', &$en];
+var_dump(locale_lookup($data, "en", false, "en"));
+?>
+--EXPECT--
+string(5) "en_en"
+string(36) "de_Hans_DE_en_fr_x_private1_private2"
+string(2) "en"