<script src="http://www.mamicode.com/__PUBLIC__/jquery-1.11.2.min.js" type="text/javascript"></script>

<script type="text/javascript">$(document).ready(function(){  $("#s_uaid").change(function(){  var value=http://www.mamicode.com/$("#s_uaid").val();    alert (value);  htmlobj=$.ajax({url:"__PUBLIC__/getid.php",async:false,data:{value:value}});  $("#s_gid").html(htmlobj.responseText);});});</script>

<select id="s_uaid" onclick="reId()" onchange="selectInput(this)">  <option value="" >---选择管理---</option><foreach name="select_ua" item="vo"><option value="http://www.mamicode.com/{$vo.uid}" >---{$vo.username}---</option></foreach></select><select id="s_gid" onclick="reId()">  <option value="" >---选择分组---</option>

<?php echo "<option value=http://www.mamicode.com/‘123123‘>123123";echo "<option value=http://www.mamicode.com/‘".$_GET[‘value‘]."‘>".$_GET[‘value‘]."</option>";