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>
js clienthint代码var xmlHttpfunction 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;
}
处理页面代码gethint.php<?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 $response;
?>
因为在处理页面$hint 是需要传到前端页面的,所以我希望在处理页面将循环内容都做好之后传递,但是我这样写:$hint="for($i=0;$i<2;$i++){......}"; 他却只会档字符串传递。
所以拜托大家有没有什么好的办法解决一下
在线等,谢谢各位了!
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>
js clienthint代码var xmlHttpfunction 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;
}
处理页面代码gethint.php<?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 $response;
?>
因为在处理页面$hint 是需要传到前端页面的,所以我希望在处理页面将循环内容都做好之后传递,但是我这样写:$hint="for($i=0;$i<2;$i++){......}"; 他却只会档字符串传递。
所以拜托大家有没有什么好的办法解决一下
在线等,谢谢各位了!
$hint='for($i=0;$i<2;$i++){.....}';eval("\$hint = \"$hint\";");
eval($hint);
echo $i; //2
if(2 == eval($hint.' return $i;'))
echo 'ok';
if(2 == eval($hint.' return $i;'))
echo 'ok';
我希望显示两个层
for($i=0;$i<2;$i++){<div>123</div>}
您认为是正确的吗?