如何在不到六个月前的PHP和MySQL中查找行，按月

Question

我在phpmyadmin中执行结果时有以下SQL语句：

SELECT COUNT(cid) as total from courier where pick_date > DATE_SUB(now(),
INTERVAL 6 MONTH) group by year(pick_date), MONTH(pick_date)

结果：

COUNT(cid)

221
380
368
315
140
204
54

但是当我尝试使用PHP时只能获得一个计数

$out = array();
$sql="SELECT COUNT(cid) as total from courier where pick_date > DATE_SUB(now(), INTERVAL 6 MONTH) group by year(pick_date), MONTH(pick_date)";
$pquery=$pdo->query($sql);
$prow=$pquery->fetch_all(PDO::FETCH_ASSOC);
$out[]=$prow['total'];
echo implode( ", ", $out );

实际结果：221

Expected:

221
380
368
315
140
204
54

提前致谢... ：）

Answer 1

检查以下代码：

$out = array();
$sql="SELECT COUNT(cid) as total from courier where pick_date > DATE_SUB(now(), INTERVAL 6 MONTH) group by year(pick_date), MONTH(pick_date)";
$stmt = $pdo->prepare($sql);
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC); 

$out = array();
foreach($stmt->fetchAll() as $value) {
    $out[] = $value['total'];
}
echo implode(", ", $out );

希望对您有帮助。