如何使用数据库中的值填充 HTML 下拉列表

问题描述

作为我正在创建的 HTML 表单的一部分，我想要一个下拉列表，该列表将列出我数据库中的所有用户名.

as part of a HTML form I am creating I would like to have a dropdown list which will list all the usernames in my database.

我认为以下代码可以解决问题，但下拉列表是空的 - 有人可以帮助我解决我做错了什么吗?谢谢.

I thought the following code would do the trick but the dropdown list is empty - could someone assist me in what i'm doing wrong? Thanks.

<tr>
<td>Owner</td>
<td>
<select name="owner">
<?php 

$sql = mysqli_query($connection, "SELECT username FROM users");

while ($row = $sql->fetch_assoc()){

?>
<option value="owner1"><?php echo $row['username']; ?></option>

<?php
// close while loop 
}
?>
</td>
</tr>

推荐答案

我猜你有问题，因为你没有在循环后关闭你的选择标签.这能解决问题吗?

My guess is that you have a problem since you don't close your select-tag after the loop. Could that do the trick?

<select name="owner">
<?php 
$sql = mysqli_query($connection, "SELECT username FROM users");
while ($row = $sql->fetch_assoc()){
echo "<option value="owner1">" . $row['username'] . "</option>";
}
?>
</select>

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