关于变量与循环语句的问题
各位大牛，消息想问个关于AJAX与PHP的问题，现在碰到这样的一个情况
我希望前端页面在点击某标签的时候，在下方可以显示我关于上方点击的标签进行关联的资料，代码如下
index.php
<html>
<head>
<script src="clienthint.js"></script>
</head>
<body>
<form>
First Name:
<?php
echo "<a>";
echo "<i class="dapei_partleft"></i>";
echo "<span class="dapei_partmiddle" title='teswt' name='test' onclick="showHint(1)">test</span>";
echo "<i class="dapei_partright"></i>";
echo " </a>";
echo "<a>";
echo "<i class="dapei_partleft"></i>";
echo "<span class="dapei_partmiddle" title='teswt1' name='test1' onclick="showHint(2)">test</span>";
echo "<i class="dapei_partright"></i>";
echo " </a>";
?>
</form>
<p>Suggestions: <span id="txtHint"></span></p>
</body>
</html>
var xmlHttp
function showHint(str)
{
if (str.length==0)
{
document.getElementById("txtHint").innerHTML=""
return
}
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url="gethint.php"
url=url+"?q="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{
document.getElementById("txtHint").innerHTML=xmlHttp.responseText
}
}
function GetXmlHttpObject()
{
var xmlHttp=null;
try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
}
catch (e)
{
// Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp;
}
<?php
$q=$_GET["q"];
//$select ="select * from test where cid='$q'";
$hint="for($i=0;$i<2;$i++){......}";
//Set output to "no suggestion" if no hint were found
//or to the correct values
if ($hint == "")
{
$response="no suggestion";
}
else
{
$response=$hint;
}
//output the response
echo $response;
?>
