ThinkPhp+MySQL 表情问题，iOS、Android表情
需求是支持移动端表情符在数据库的存取；
首先MySQL存储是支持的，在PC端用的MySQL客户端复制表情，或用SQL都可以写入数据库并且数据显示正常；而且用终端登录服务器的MySQL进行命令行查询出的结果页正常；
但通过TP的API查询，JSON返回的结果是乱码
并且通过API上传到服务端然后插入数据库的结果则是乱码，如下图第一条是API上传的，第二条是直接PC端用SQL或Copy进数据库的；
如果API Post上来的数据直接返回给移动端则移动端收到的数据也正常；
请有经验的帮忙看下是哪里的问题，我考虑是不是TP的存取过程问题
回复内容：
需求是支持移动端表情符在数据库的存取；
首先MySQL存储是支持的，在PC端用的MySQL客户端复制表情，或用SQL都可以写入数据库并且数据显示正常；而且用终端登录服务器的MySQL进行命令行查询出的结果页正常；
但通过TP的API查询，JSON返回的结果是乱码
并且通过API上传到服务端然后插入数据库的结果则是乱码，如下图第一条是API上传的，第二条是直接PC端用SQL或Copy进数据库的；
如果API Post上来的数据直接返回给移动端则移动端收到的数据也正常；
请有经验的帮忙看下是哪里的问题，我考虑是不是TP的存取过程问题
还是MySQL的问题，我重新安装了MySQL 5.6版本现在可以了，但数据库切换到我再阿里云上的RDS还是不多，阿里云的也是5.6版本utf8mb4啊！
数据库编码问题，emoji表情占四个字节，把数据库编码改为utf8mb4就行了，数据库版本需要5.5.3+。下面官方文档：http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html
看网上有说的 进行json_encode 存入数据库，读取的时候在json_decode，虽然有点麻烦，但是能实现。
还有没有别的方法？能不能过滤掉表情？
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