如何通过Ajax获取select标签的多个选定值?

时间:2015-03-18 07:29:16

标签: php html ajax

嗨,大家好我如何通过Ajax Call发送<select mutiple>标签的值?谢谢

我的<select multiple>标记在这里

<select multiple name='user[]' onchange="showUser(this.value)"> 
  <option value="1"> User 1 </option>
  <option value="2"> User 2 </option>
</select>

此处为<script>代码

function showUser(str) {
  if (str == "") {
        document.getElementById("txtHint").innerHTML = "";
        return;
    } else { 
        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("txtHint").innerHTML = xmlhttp.responseText;
            }
        }
        xmlhttp.open("GET","getuser.php?q="+str,true);

        xmlhttp.send();
    }
 }

我想从我的后端发送多个值(getuser.php)然后我通过MYSQL SELECT()调用它,回到我的html页面并将其显示给我的index.php <select>标签< / p>

喜欢这个<html> Index.php

   <select id="txtHint">
     <option> 1 = select[value=1] </option>
     <option>2 = select[value=2]</option>
   </select>

注意:这些代码仅适用于 <select>标记但不适用于多个,如何在< em> Mutiple Select Tag ?

谢谢你们

0 个答案:

没有答案