您可以通过 2 种方式执行此操作:
第一种方法是重定向具有$_GET
包含产品 ID 的参数的页面:
<div class="row-fluid">
<div class="span3">
<label>SKU</label>
<?php echo '<select name="ITEM" id="user" class="textfield1"
onchange="document.location=\'my-page.php?pid=\' + this.value">';
while($res= mysql_fetch_assoc($sql))
{
echo '<option value="'.$res['productID'].'"';
// LATER EDIT
if(isset($_GET['pid']) && $_GET['pid'] == $res['productID'])
echo 'selected="selected"';
// END LATER EDIT
echo '>';
echo $res['SKU'] ;
echo'</option>';
}
echo'</select>';
?>
</div>
</div>
<div class="row-fluid">
<div class="span3">
<label>Description</label>
<?php
if(isset($_GET['pid']) && is_numeric($_GET['pid'])) {
$sql = mysql_query("SELECT description
FROM products
WHERE product_id='" . mysql_real_escape_string($_GET['pid']) . "'");
$row = mysql_fetch_assoc($sql);
}
?>
<input type="text" name="description" value="<?=$row['description']?>"/>
</div>
</div>
第二种方法是进行 ajax 调用并动态填充描述输入,而不需要重新刷新页面
// this is the JS code
$(document).ready(function(){
$('#user').change(function(){
$.POST("my-ajax-call-page.php",
{pid: $("#user").val()},
function(data){
$('input[name="description"]').val(data.description);
}, "json");
});
});
你my-ajax-call-page.php
应该是这样的:
<?php
include("mysql-connection.php");
$sql = mysql_query("SELECT description
FROM products
WHERE product_id='" . mysql_real_escape_string($_POST['pid']) . "'");
$row = mysql_fetch_assoc($sql);
echo json_encode("description" => $row['description']);
?>
您将在jQuery 库网站上找到许多使用 jQuery 库的示例和文档