加载选项到html中的下拉列表中，从页面从数据库加载时加载

Question

我想在加载html表单时加载下拉列表的选项。我已经知道如何选择第一个下拉菜单并加载第二个。但是当页面加载时如何做到这一点。您对这方面给予的种种考虑非常感谢。

Answer 1

你可以尝试从数据库

<?php 
$con=mysqli_connect("localhost","user","password","db_name"); 
if (mysqli_connect_errno()) { 
    echo "Failed to connect to MySQL: " . mysqli_connect_error(); 
} 
$result = mysqli_query($con,"SELECT * FROM table_name"); 
echo '<select id="select_1">'; 
while($row = mysqli_fetch_array($result)) { 
    echo '<option value="'.$row['column_name'].'">'.$row['column_name'].'</option>'; 
} 
echo '</select>'; 
mysqli_close($con); 
?>