mysql - Getting formatted and sorted data from SQL -

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i data sql graph. instead of getting data , sorting in php solve using sql.

the dates should grouped day , platform should counted , sorted ios , android.

bonus: if can sort platform values, rather given values, better.

here data presented in sql:

date                |platform --------------------+---------- 2014-04-22 11:15:55 |ios 2014-04-22 12:15:55 |android 2014-04-22 13:15:55 |ios 2014-04-23 11:15:55 |ios 2014-04-23 12:15:55 |android 2014-04-23 13:15:55 |android

desired output:

date        |ios    |android ------------+-------+----- 2014-04-22  |2      |1 2014-04-23  |1      |2 

select `date`,        sum(`ios`) `ios`,        sum(`android`) `android`   (select date(`date`) `date`,           case               when `platform`='ios' 1               else 0           end `ios`,           case               when `platform`='android' 1               else 0           end `android`    demo) t group `date`

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