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如何在这种网址里面拿到id的参数呢

WBOYOriginal: 2016-06-13 12:56:00940browse

怎么在这种网址里面拿到id的参数呢？
http://item.taobao.com/item.htm?id=16866631720&ali_trackid=2:mm_1463_0_0:1357875437_410_201055913&spm=2014.1

这是淘宝的链接，怎样拿到里面的id参数呢？，位置不一定在那的

------解决方案--------------------

$s = 'http://item.taobao.com/item.htm?id=16866631720&ali_trackid=2:mm_1463_0_0:1357875437_410_201055913&spm=2014.1';<br />
<br />
parse_str(substr($s, strpos($s, '?')+1), $ar);<br />
print_r($ar);

Array
(
    [id] => 16866631720
    [ali_trackid] => 2:mm_1463_0_0:1357875437_410_201055913
    [spm] => 2014.1
)

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如何在这种网址里面拿到id的参数呢

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