id | username | pass | reply | date |
0 | user1 | MD5 | Access-Accept | date 1 |
1 | user2 | MD5 | Access-Reject | date 2 |
2 | user3 | MD5 | Access-Reject | date 3 |
3 | user4 | MD5 | Access-Accept | date 4 |
试图找出如何计数和显示/输出表中的所有“access accept”和“access reject”。
这就是我被卡住的地方,当前的脚本正在计算所有的行,
<?php
// start connection
$conn = new mysqli($servername, $username, $password, $dbname);
$sql = 'SELECT * FROM table_1';
if (mysqli_query($conn, $sql)) {
echo "";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}
$result = mysqli_query($conn,$sql);
$totalsum = mysqli_num_rows($result);
mysqli_close($con);
?>
还有html
<?php include 'count-words.php';?>
<p>Total access: <?=$totalsum?> Total Sessions!</div></p>
继续使用社区帮助,注意脚本确实输出了我希望实现的目标。
mysql> SELECT reply, COUNT(reply) FROM radpostauth GROUP BY reply;
+---------------+--------------+
| reply | COUNT(reply) |
+---------------+--------------+
| Access-Accept | 573 |
| Access-Reject | 233 |
+---------------+--------------+
2 rows in set (0.00 sec)
因为php和sql不是我的强属性,所以我需要一些帮助来输出这两行的结果,比如:
<?=$accept?>
<?=$reject?>
1条答案
按热度按时间nwlls2ji1#
只是解释一下:
count(reply)
以及group by
提供回复列中每个值的计数。所以access accept和access reject将被计算在内,举个例子,您将收到:正是你想要的。
你也可以
AS Reply Count
之后COUNT(reply)
所以输出是reply count而不是count(reply)。