我试图找出答案,但没有joy。我有一个while循环,给出了表中输出的许多行。就在这里:
$result = mysqli_query($con,"SELECT a.winner AS horseWinner, a.twitter_pubstatus,
a.market, a.racetime, a.racecourse, a.date_dd, a.date_mm, b.username, b.course,
b.horse,b.type, b.racetime, b.dd, b.mm FROM results a
INNER JOIN bets b ON a.winner = b.horse WHERE a.twitter_pubstatus = 0
AND a.market = '$win' AND b.type = '$userwin'
AND a.date_dd = b.dd AND a.date_mm = b.mm GROUP BY a.winner");
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['horseWinner'] . "</td>";
echo "<td>" . $row['username'] . "</td>";
echo "</tr>";
}
echo "</table>";这一切都很好,但问题在于每个horseWinner都有多个用户名。我已经尝试过在within循环中执行另一个while循环。因此,我希望它在第二列中列出由逗号分隔的用户名。
非常感谢
发布于 2014-04-02 19:20:00
在您的GROUP_CONCAT()上添加一个username,以便它返回一个逗号分隔的列表-
SELECT a.winner AS horseWinner, a.twitter_pubstatus,
a.market, a.racetime, a.racecourse, a.date_dd, a.date_mm,
GROUP_CONCAT(b.username) as username,
b.course, b.horse,b.type, b.racetime, b.dd, b.mm FROM results a
INNER JOIN bets b ON a.winner = b.horse WHERE a.twitter_pubstatus = 0
AND a.market = '$win' AND b.type = '$userwin'
AND a.date_dd = b.dd AND a.date_mm = b.mm GROUP BY a.winnerhttps://stackoverflow.com/questions/22820859
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