我先用SQL查询出数据库里的数据，然后对其进行遍历，最后用 json_encode编码输出，结果输出的不是json类型的，请问各位大神，怎么解决，万分感激！
回复讨论(解决方案)
那就是json数据，你偏要说不是json类型的。
你输出的结果就是json类型 ，只是你这样看的话是有点问题，你去百度在线json格式化 ，把你的数据放进去格式化一下就行了，但是这个数据不影响你的查询结果，只是json显示的问题。
这个结果看起来确实是json，但是我在js里用ajax进行解析，得到结果如下：
1、我在ajax里把datatype写为json，什么结果都得不到
2、我把datatype注释掉，然后输出data，结果得到一个字符串
所以我这里就搞不懂了。
这是哪来的？也算 json 吗？
把html 里的
这个结果看起来确实是json，但是我在js里用ajax进行解析，得到结果如下：
1、我在ajax里把datatype写为json，什么结果都得不到
2、我把datatype注释掉，然后输出data，结果得到一个字符串
所以我这里就搞不懂了。
这个是因为你的这个页面还有HTML代码，所以你在echo $phptest; exit;增加这个exit;停止输出，记得前面不要用php输出HTML代码
感谢各位大神，问题已解决
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