我正在尝试在第一列之前添加一列，该列从 1 开始对每条记录进行编号。我试图将自动增量添加到此行回显"。$row['ss'] .";，但这似乎不想工作。任何想法如何做到这一点？
我的代码如下所示：
$result = mysqli_query($con,"SELECT * FROM `results` WHERE Event='100' AND Gender='M' ORDER BY Performance ASC");
echo "<table border='0'>
<tr>
<th align='left'>Pos</th>
<th align='left'>Event</th>
<th>Performance</th>
<th>Wind</th>
<th>Place</th>
<th align='left'>Name</th>
<th align='left'>Surname</th>
<th>Age</th>
<th>Team</th>
<th>Meet</th>
<th>Date</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['ss'] . "</td>";
echo "<td>" . $row['Event'] . "</td>";
echo "<td>" . $row['Performance'] . "</td>";
echo "<td>" . $row['Wind'] . "</td>";
echo "<td>" . $row['Pos'] . "</td>";
echo "<td width='100' align='left'>" . $row['Surname'] . "</td>";
echo "<td Width='100'>" . $row['Name'] . "</td>";
echo "<td>" . $row['Age'] . "</td>";
echo "<td>" . $row['Team'] . "</td>";
echo "<td>" . $row['Meet'] . "</td>";
echo "<td>" . $row['Date'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>
在标题中添加此行
<th align='left'>#</th>
这里是 php 代码
$count = 1;
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $count . "</td>";
echo "<td>" . $row['ss'] . "</td>";
echo "<td>" . $row['Event'] . "</td>";
echo "<td>" . $row['Performance'] . "</td>";
echo "<td>" . $row['Wind'] . "</td>";
echo "<td>" . $row['Pos'] . "</td>";
echo "<td width='100' align='left'>" . $row['Surname'] . "</td>";
echo "<td Width='100'>" . $row['Name'] . "</td>";
echo "<td>" . $row['Age'] . "</td>";
echo "<td>" . $row['Team'] . "</td>";
echo "<td>" . $row['Meet'] . "</td>";
echo "<td>" . $row['Date'] . "</td>";
echo "</tr>";
//other code
$count=$count+1;
}
更好的解决方案是使用变量计数器对行进行"编号"：
$counter = 1;
while($row = mysqli_fetch_array($result))
echo "<td>" . $counter . "</td>";
$counter++;
}
这是正确的方法，因为如果该ss列是 mysql 自动增量，那么您的行将不会按SORT编号，而是按它们插入数据库的顺序编号，无论您应用任何排序。
尝试用fetch_assoc更改fetch_array