Fix str_pad rc info

This fixes at least part of bug #78811.

Author: nikic

ext/opcache/Optimizer/zend_func_info.c

@@ -201,7 +201,7 @@ static const func_info_t func_infos[] = {
 	FN("trim",                         MAY_BE_STRING),
 	FN("ltrim",                        MAY_BE_STRING),
 	F1("strip_tags",                   MAY_BE_STRING),
-	F1("explode",                      MAY_BE_FALSE | MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING),
+	F1("explode",                      MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING),
 	FN("implode",                      MAY_BE_STRING),
 	FN("join",                         MAY_BE_STRING),
 	FN("setlocale",                    MAY_BE_FALSE | MAY_BE_STRING),
@@ -213,7 +213,7 @@ static const func_info_t func_infos[] = {
 	F0("levenshtein",                  MAY_BE_LONG),
 	F1("chr",                          MAY_BE_STRING),
 	F1("str_getcsv",                   MAY_BE_NULL | MAY_BE_ARRAY | MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_NULL | MAY_BE_ARRAY_OF_STRING),
-	F1("str_pad",                      MAY_BE_NULL | MAY_BE_STRING),
+	FN("str_pad",                      MAY_BE_NULL | MAY_BE_STRING),
 	F1("strchr",                       MAY_BE_FALSE | MAY_BE_STRING),
 	F1("sprintf",                      MAY_BE_FALSE | MAY_BE_STRING),
 	F0("printf",                       MAY_BE_FALSE | MAY_BE_LONG),