Description:
------------
---
From manual page: https://php.net/book.apcu
---

env:

php_apcu-5.1.8-7.1-ts-vc14-x64

Test script:
---------------
env:
php_apcu-5.1.8-7.1-ts-vc14-x64

test code:

apcu_add('apcu_stock_1', 100);
var_dump(apcu_fetch('apcu_stock_1')); // result: int 0

apcu_add('apcu_stock_2', 100);
var_dump(apcu_fetch('apcu_stock_2')); // result: string '100'

apcu_add('apcu_stock_3', 100);
var_dump(apcu_fetch('apcu_stock_3')); // result: int 100

...


Expected result:
----------------
int 100

Actual result:
--------------
int 0 or string 100 or int 100 ...