Question

我有下一个脚本：

test.php - 在标题中我有：

<script>
function dest(str2) {
    if (str2 == "") {
        return;
    } else {
        //alert(str2);
        if (window.XMLHttpRequest) {
            // code for IE7+, Firefox, Chrome, Opera, Safari
            xmlhttp = new XMLHttpRequest();
        } else {
            // code for IE6, IE5
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
        xmlhttp.onreadystatechange = function() {
            if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                document.getElementById("destin").innerHTML = xmlhttp.responseText;
                alert(xmlhttp.responseText);
            }
        }
        xmlhttp.open("GET","dest.php?q2="+str2,true);
        xmlhttp.send();
    }
}
</script>

test.php - 我体内有：

<div class="col-sm-12">
    <div class="form-group has-icon has-label selectpicker-wrapper">
    <label>De la</label>
    <?php
        $plecari=db_query("SELECT DISTINCT plecare from `pl_dest_pf` WHERE activ = 'activ' ORDER BY plecare");
    ?>
    <select class="selectpicker input-price" data-live-search="true" data-width="100%" data-toggle="tooltip" title="Select" name="plecare" id="dela" onchange="dest(this.value)">
    <?php
        while($rez_plecari = $plecari->fetch_assoc()){
    ?>
        <option value="<?php echo $rez_plecari['plecare']?>"><?php echo $rez_plecari['plecare']?></option>
    <?php } ?>
    </select>
    <span class="form-control-icon"><i class="fa fa-location-arrow"></i></span>
    </div>
</div>
<div class="col-sm-12">
    <div class="form-group has-icon has-label selectpicker-wrapper">
    <label>Pana la </label>
    <select id="destin" class="selectpicker input-price" data-live-search="true" data-width="100%" data-toggle="tooltip" title="Select" name="desti">
    </select>
    <span class="form-control-icon"><i class="fa fa-location-arrow"></i></span>
    </div>
</div>

dest.php：

<?php
session_start();
include('include/functions2.php');
$a=$_GET['q2'];
$destinatie=db_query("SELECT DISTINCT destinatie from `pl_dest_pf` WHERE plecare ='".$a."' AND activ = 'activ' ORDER BY destinatie ");
?>
<option value="">Selecteaza...</option>
<?php
    while($rez_destinatie = $destinatie->fetch_assoc()){
?>
<option value="<?php echo $rez_destinatie['destinatie']?>"><?php echo $rez_destinatie['destinatie']?></option>
<?php } ?>

我的问题是返回第二个选择的值，但是在第二个选择时没有显示（我只能通过alert命令看到它）。拜托，我可以告诉我哪里有错误。非常感谢！

返回值但未在select上填充

0 个答案: