我想知道如何做到这一点。
我有一个PHP表单,这个表单包含两个下拉字段“Campaigns”和“Users”。我想首先显示广告系列字段,然后在您选择广告系列后,第二个下拉字段会加载该广告系列的用户。
广告活动:
$conn = new PDO("mysql:host=$servername;dbname=timeclock", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// "Connected successfully";
$result = $conn->query("SELECT Campaign_ID,Name FROM campaigns;");
//SELECT TAG with js Function getEmployee()
echo "<select name='cmplist' class='ifield' onchange='getEmployee();'>";
while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
unset($Campaign_ID, $Name);
$Campaign_ID = $row['Campaign_ID'];
$Name = $row['Name'];
echo '<option value="'.$Campaign_ID.'">'.$Campaign_ID.' • '.$Name.'</option>';
}
echo "</select>";
我正在尝试使用JavaScript加载(基本上)相同的代码,但基于所选的广告系列的代理结果。
有没有像file_get_contents()
JS 一样的功能?
这就是我现在所拥有的(可怕的,我知道):
function getEmployee() {
document.getElementById("campanadas").innerHTML= <?php file_get_contents("camps.php?camp=" + document.getElementById("campannas").value) ?> ;
}
当然还有php文件:
$conn = new PDO("mysql:host=$servername;dbname=timeclock", $username, $password);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
//echo "Connected successfully";
$result = $conn->query("SELECT Employee,FName,LName FROM users WHERE Active = 1 AND Campaign_ID =".$_GET["camp"].";");
echo "<td class='frmname'>Agent's Name:</td> <td class='topfield' id='campannas'></td>";
echo "<select name='emplist' class='ifield'>";
while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
unset($Employee, $FName, $LName);
$Employee = $row['Employee'];
$FName = $row['FName'];
$LName = $row['LName'];
echo '<option value="'.$Employee.'">'.$Employee.' • '.$FName.' '.$LName.'</option>';
}
echo "</select>";
在此先感谢您的时间。
发布于 2018-09-07 13:28:59
这就是我所需要的。
function getEmployee() {
var url = "camps.php?camp=" + document.getElementById('campannas').value;
var xhttp = new XMLHttpRequest();
xhttp.open("GET", url, true);
xhttp.send();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("campanadas").innerHTML = this.responseText;
}
};
}
谢谢你们。
https://stackoverflow.com/questions/-100002581
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