fixing locale_lookup() too

Author: devnexen

ext/intl/locale/locale_methods.c

@@ -1438,6 +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 */

ext/intl/tests/locale_compose_references.phpt renamed to ext/intl/tests/locale_compose_lookup_references.phpt

@@ -1,5 +1,5 @@
 --TEST--
-locale_compose() with values as references.
+locale_compose()/locale_lookup() with values as references.
 --EXTENSIONS--
 intl
 --FILE--
@@ -20,7 +20,10 @@ $data = [
 	'private2' => 'private2',
 	];
 var_dump(locale_compose($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"