curl采集，求助
采集$url="http://s.click.taobao.com/t_8?e=7HZ6jHSTbIWZXoQ43%2BGOC2vGvlT28S6knArdy2HkZM%2BsVw%3D%3D&p=mm_32165125_0_0";
淘宝会自动跳转$url地址：http://item.taobao.com/item.htm?id=15711538808&ali_trackid=2:mm_32165125_0_0:1346999816_310_551572511
怎样才能获取到跳转后的$url，请帖详细代码
请用我给的url测试，谢谢
------解决方案--------------------
真的很佩服楼主的执着！
观察了一下，个人认为很难，不过按楼主的执着，实现还是之日可待的
对于 $url 直接抓取后去的跳转地址
HTTP/1.1 302 Moved Temporarily
Server: Tengine
Date: Sun, 09 Sep 2012 13:16:39 GMT
Content-Type: text/html
Connection: close
Location: http://s.click.taobao.com/t_js?tu=http%3A%2F%2Fs.click.taobao.com%2Ft_8%3Fe%3D7HZ6jHSTbIWZXoQ43%252BGOC2vGvlT28S6knArdy2HkZM%252BsVw%253D%253D%26p%3Dmm_32165125_0_0%26ref%3D
Expires: Sun, 09 Sep 2012 13:16:39 GMT
Cache-Control: max-age=0
这个http://s.click.taobao.com/t_js是一个js文件，里面有
var inf = (top.location!=self.location); //不在框架中时为真
其后有
if(inf){
var oi = document.createElement("iframe");
创建一个插入式框架，该框架里引入了 http://js.tongji.linezing.com/1023331/tongji.js
对url参数进行编解码后设置cookie，然后跳转到 tu 执行的地址
由于 curl 不能执行 js，所以你需要用php去模拟这一过程的实现
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