我使用APCU进行数据缓存。在我更新服务器之前它工作正常。更新后我有这些版本： Apache - 2.4.10 PHP - 5.6 APCU - 4.0.11
现在没有任何内容存储在缓存中。当我运行php -r＆＃39; apcu_store（＆＃34;测试＆＃34;，＆＃34;测试值＆＃34;）;＆＃39;它返回＆＃34; 1＆＃34;但结果是apcu_fetch（＆＃34;测试＆＃34;）什么也没有返回。
什么可以被打破？
APCU配置如下：
APCu Support => Enabled
Version => 4.0.11
APCu Debugging => Disabled
MMAP Support => Enabled
MMAP File Mask =>
Serialization Support => php
Revision => $Revision: 328290 $
Build Date => Dec 1 2016 12:26:37
Directive => Local Value => Master Value
apc.enabled => On => On
apc.shm_segments => 1 => 1
apc.shm_size => 2048M => 2048M
apc.entries_hint => 4096 => 4096
apc.gc_ttl => 3600 => 3600
apc.ttl => 0 => 0
apc.smart => 0 => 0
apc.mmap_file_mask => no value => no value
apc.enable_cli => On => On
apc.slam_defense => On => On
apc.rfc1867 => Off => Off
apc.rfc1867_prefix => upload_ => upload_
apc.rfc1867_name => APC_UPLOAD_PROGRESS => APC_UPLOAD_PROGRESS
apc.rfc1867_freq => 0 => 0
apc.rfc1867_ttl => 3600 => 3600
apc.preload_path => no value => no value
apc.coredump_unmap => Off => Off
apc.use_request_time => On => On
apc.serializer => php => php
apc.writable => /tmp => /tmp