我希望根据选择的“产品”更改“ Serienummer”中的数据列表。
<td>Product</td>
<td>
<Select name="ProductID" placeholder="Productnaam" required>
<?php
$query2 = "SELECT DISTINCT ProductID FROM HW_Serial WHERE Prefix = '$prefix'";
$result2 = mssql_query($query2);
$numRows = mssql_num_rows($result2);
while($row = mssql_fetch_array($result2))
{
$DisProductID=$row["ProductID"];
$query3 = "SELECT ProductID, ProductName FROM Products WHERE ProductID = '$DisProductID' order by ProductName";
$result3 = mssql_query($query3);
$numRows = mssql_num_rows($result3);
while($row = mssql_fetch_array($result3))
{
$xProductID=$row["ProductID"];
$xProductName=$row["ProductName"];
if ($ProductID == $xProductID) {
echo "<OPTION value =\"$xProductID\">$xProductName</OPTION>";
} else {
echo "<OPTION value =\"$xProductID\">$xProductName</OPTION>";
}
}
}
?>
</select>
</tr>
<tr>
<td>Serienummer</td>
<td>
<input list="devicesn" name="devicesn" autocomplete="off" placeholder="Serienummer" required>
<datalist id="devicesn">
<?php
$query2 = "SELECT devicesn FROM HW_Serial WHERE ProductID = '$ProductID' order by devicesn";
$result2 = mssql_query($query2);
$numRows = mssql_num_rows($result2);
while($row = mssql_fetch_array($result2))
{
$xdevicesn=$row["devicesn"];
if ($devicesn == $xdevicesn) {
echo "<OPTION value =\"$xdevicesn\">$xdevicesn</OPTION>";
} else {
echo "<OPTION value =\"$xdevicesn\">$xdevicesn</OPTION>";
}
}
?>
我的猜测是这必须使用JavaScript来完成,但是在这方面我是一个完整的初学者。
预先感谢
答案 0 :(得分:0)
当<select>
更改时,您可以使用参数重定向到当前页面。并在数据列表部分的php代码中接收参数。
例如:
<select name="ProductID" placeholder="Productnaam" required onchange="location.href='?product' + this.value">...</select>
然后我只对不起,我不知道如何在PHP中接收yourpage?p=project
之类的网址参数。