Fix bu: xcache only save the first key
Updated CacheTest.php
Updated CacheTest.php
Updated CacheTest.php
Fix bug: xcache delete not unset key
Merge pull request #1406 from dreamsxin/1.2.4

Fix bug: xcache only save the first key
Merge pull request #1418 from sjinks/1.2.4

[1.2.4] Fix #1413