PHP下拉列表，包含来自MySQL数据库的数据

Question

我一直尝试使用来自MySQL数据库的数据的PHP下拉列表。

我已在下面附上我的代码，我没有收到下拉列表。可以有人帮忙

<?php
$conn   =   mysql_connect('localhost','root','');
mysql_select_db('qsearch',$conn);
$query = "select Category from information";
$result = mysqli_query($query);
echo '<select id="info" name="info">';
echo '<option value="">-select-</option>';
while ($row = mysqli_fetch_assoc($result)){
?>
    <option value="<?php echo $row['Category']; ?>"><?php echo $row['Category'];         ?>     </option>
<?php    
}
echo "</select>";
?>

Answer 1

因为您的一半功能来自mysql而其他功能来自mysqli

$conn   =   mysql_connect('localhost','root','');
mysql_select_db('qsearch',$conn);

$query = "select Category from information";

$result = mysqli_query($query);
while ($row = mysqli_fetch_assoc($result)){

您需要先仔细阅读文档

http://www.php.net/mysqli＆amp; http://www.php.net/mysqli_connect