我在开源程序中的MYSQL见到了这些东西,请问这些东西是什么?
在他的user表;里面有这样这样一个字段叫做email_setting:
里面的值是这样的:a:2:{s:9:"FOLLOW_ME";s:1:"N";s:10:"NEW_ANSWER";s:1:"N";}
请问这是啥意思?
user表里面有一个rencent_topic字段,也是这样的:a:1:{i:0;s:6:"化妆";}
为什么有的字段会有这么奇怪的字符?
这个开源程序叫做wecenter。
多谢楼下的回答,当存储一个二进制数据的时候,就可以序列化。但是我想假设存一个数组。我可以json存进去,也可以序列化存进去。
谁更好一些?
回复内容:
在他的user表;里面有这样这样一个字段叫做email_setting:
里面的值是这样的:a:2:{s:9:"FOLLOW_ME";s:1:"N";s:10:"NEW_ANSWER";s:1:"N";}
请问这是啥意思?
user表里面有一个rencent_topic字段,也是这样的:a:1:{i:0;s:6:"化妆";}
为什么有的字段会有这么奇怪的字符?
这个开源程序叫做wecenter。
多谢楼下的回答,当存储一个二进制数据的时候,就可以序列化。但是我想假设存一个数组。我可以json存进去,也可以序列化存进去。
谁更好一些?
楼上说的对,补充一下,由于数据库不能存数组,只能将其用php的序列化函数转化为一串字符串。
我们可以用unserialize()
对字符串进行反序列化,得到的结果是:
<code>Array ( [FOLLOW_ME] => N [NEW_ANSWER] => N ) Array ( [0] => 化妆 ) </code>
这是序列化的数据,php里是用serialize()处理得来的字串

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