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in Technique[技术] by (71.8m points)

php+mysql有没有办法实现简单的查询

mysql数据库中有500条数据
其中100条字段date:2017-04-20
400条字段date:2017-04-21
有没有办法通过php把这两个字段的内容分开显示
比如在php页面选中2017-04-20的时候只显示这里面的100条数据

php怎么实现这个


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    global $empire;
    $query = "select * from table where date='2017-04-20'" ;
    $sql=$empire->query($query);
    while($row=$empire->fetch($sql){
        //code
        echo $row['date']
    }
global $empire;
    $query = "select * from table where group by date" ;
    $sql=$empire->query($query);
    while($row=$empire->fetch($sql){
        //code
        echo $row['date']
    }

//这样就能获得所有日期且不重复了

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