php如何输出表格内容比较快捷高效。
比如我现在有test表。
里面有id,fenlei,mc
分别代表,id,自动增长,
fenlei,参赛地区
mc,具体的评选参数
id fenlei mc
1 北京 卫生好
2 上海 卫生好
3 上海 服务好
4 天津 卫生好
5 天津 服务好
6 北京 服务好
7 上海 卫生好
8 上海 服务好
我想对这个表格做一个统计。。用程序输出如下表格。
我想分别统计
回复讨论(解决方案)
csv
csv
啥意思,我是要在线输出,
这些都是最基础的统计
善用数组的交并差、array_count_values、array_sum、count 组合一下就是了
这些都是最基础的统计
善用数组的交并差、array_count_values、array_sum、count 组合一下就是了
求案例代码,感谢了,。。兄弟。
这些都是最基础的统计
善用数组的交并差、array_count_values、array_sum、count 组合一下就是了
我是新手,还请领导给一个示例,感谢了。。
你先给个数组,我懒得打字
你先给个数组,我懒得打字
id fenlei mc
1 北京 卫生好
2 上海 卫生好
3 上海 服务好
4 天津 卫生好
5 天津 服务好
6 北京 服务好
7 上海 卫生好
8 上海 服务好
你先给个数组,我懒得打字
id fenlei mc
1 北京 卫生好
2 上海 卫生好
3 上海 服务好
4 天津 卫生好
5 天津 服务好
6 北京 服务好
7 上海 卫生好
8 上海 服务好
完全新手入门,还请领导多多指教。
这叫数组啊?
这叫数组啊?
我不知道这个不叫数组,问题是我给了你数组,到时候我怎么生成数组呢。。。
所以,我想看到你把生成数字的过程,我刚刚给的书数据表的记录。
我刚刚给的是数据表的记录,不是数组,问题我怎么通过这个表来生成数组,我也不是很清楚。。
还请领导动动手,感谢。
我刚刚给的是数据表的记录,不是数组,问题我怎么通过这个表来生成数组,我也不是很清楚。。
还请领导动动手,感谢。
在线等领导的好代码。感谢。。
select a.fenlei, count(*), count(*)/(select count(*) from test)*100 as percentage, constitutefrom test a, (select fenlei, group_concat(mc,',',cnt) as constitute from(select fenlei, mc, count(*) as cnt from test group by 1,2) t group by 1) t1where a.fenlei=t1.fenlei group by 1
执行该 SQL 指令,可得到这样的数据
Array( [0] => Array ( [fenlei] => 北京 [count(*)] => 2 [percentage] => 25.0000 [constitute] => 服务好,1,卫生好,1 ) [1] => Array ( [fenlei] => 上海 [count(*)] => 4 [percentage] => 50.0000 [constitute] => 服务好,2,卫生好,2 ) [2] => Array ( [fenlei] => 天津 [count(*)] => 2 [percentage] => 25.0000 [constitute] => 服务好,1,卫生好,1 ))输出时需对 constitute 列做一下处理

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