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HomeBackend DevelopmentPHP Tutorial php 怎么获取JS的值 ,新手折腾几天了 还请大侠赐教

  php 如何获取JS的值 ,新手折腾几天了 还请大侠赐教!
请问以下代码如何修改才能得到 $key 值 

<script type="text/javascript">
TOP.api(&#39;rest&#39;, &#39;get&#39;, {
//method:&#39;taobao.taobaoke.items.convert&#39;,
method : &#39;taobao.taobaoke.widget.items.convert&#39;,
num_iids : &#39;<?=$id?>&#39;,
fields : &#39;num_iid,click_url,commission_rate&#39;
}, function(resp) {
if(resp.error_response) {
alert(&#39;taobao.taobaoke.widget.items.convert接口获取商信息品失败!&#39; + resp.error_response.msg);
return false;
}

 
var respItem = resp.taobaoke_items.taobaoke_item;
for(var i = 0; i < respItem.length; i++) {
abc=respItem[i].num_iid;
}
})
</script>
<?
$key="<script>document.write(abc);</script>";
echo $key;  //请问大侠们如何修改这里才能得到值 感激不尽!
?>

------解决方案--------------------
没可能。PHP是服务器端语言,JS是浏览器端语言。apache先执行PHP代码,解析成HTML代码后下载到用户的浏览器,浏览器再执行JS语言进一步渲染。所以当你的代码运行先运行PHP,再运行TOP.api,等执行到3f1c4e4b6b16bbbd69b2ee476dc4f83adocument.write(abc);2cacc6d41bbb37262a98f745aa00fbf0时,已经从apache断开。
------解决方案--------------------
楼上是正确的, 使用 AJAX 吧!!!
------解决方案--------------------

<script type="text/javascript">

    TOP.api(&#39;rest&#39;, &#39;get&#39;, {

        //method:&#39;taobao.taobaoke.items.convert&#39;,

        method : &#39;taobao.taobaoke.widget.items.convert&#39;,

        num_iids : &#39;<?=$id?>&#39;,

        fields : &#39;num_iid,click_url,commission_rate&#39;

    }, function(resp) {

        if(resp.error_response) {

            alert(&#39;taobao.taobaoke.widget.items.convert接口获取商信息品失败!&#39; + resp.error_response.msg);

            return false;

        }

  

        var respItem = resp.taobaoke_items.taobaoke_item;

        for(var i = 0; i < respItem.length; i++) {

            abc=respItem[i].num_iid;

        }

        $.post(&#39;&#39;,{abc:abc},function(data){})//这里添加ajax请求

    })
</script>
<?
if(isset($_POST[&#39;abc&#39;]))
{

    $abc = $_POST[&#39;abc&#39;];

    echo $abc;
}
?>

楼主可以根据ajax的这种方法来修改您自己的代码
------解决方案--------------------
其实,从客户端通过js取得数据,是可以通过某个事件驱动提交的,1种是ajax,另一种是在满足一定条件的时候触发提交,比如通过setTimeout,满足一定条件,触发submit提交。总之,能完成lz的需要。

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