加載選項到html中的下拉列表中，從頁面從數據庫加載時加載

Question

我想在加載html表單時加載下拉列表的選項。我已經知道如何選擇第一個下拉菜單並加載第二個。但是當頁面加載時如何做到這一點。您對這方面給予的種種考慮非常感謝。

Answer 1

你可以嘗試從數據庫

<?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); 
?>