如何从SQL使用PHP如何使用PHP
了整整一天一厘米的echo
最高值,这是我的数据库呼应厘米的最高值从SQL全日:
-------------------------------
id | date | centimeter
------------------------------
1 | 2014-01-31 | 160
2 | 2014-02-28 | 800
3 | 2017-03-31 | 23
4 | 2016-04-30 | 130
5 | 2016-04-30 | 600
6 | 2017-03-31 | 700
7 | 2014-03-28 | 200
我想这种方式来呼应其PHP:
2017-03-31 700
2016-04-30 600
2014-03-28 200
*我想用PDO
$SQL = "SELECT date , MAX(centimeter) FROM TABLE_NAME GROUP BY date";
$connection = new PDO('mysql:host=HOST;dbname=DB_NAME;charset=utf8', 'USER_NAME', 'PASSWORD');
$stmt = $connection->prepare($SQL)
if($stmt)
{
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
var_dump($result);
}