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php 怎么准确判断远程文件的扩展名

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Release： 2016-06-13 12:31:43
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php 如何准确判断远程文件的扩展名？

http响应头如下：
Array
(
    [0] => HTTP/1.1 200 OK

    [1] => Content-Length: 345942

    [2] => Content-Type: application/octet-stream

    [3] => Server: Microsoft-IIS/6.0

    [4] => X-Powered-By: ASP.NET

    [5] => Date: Sun, 08 Dec 2013 05:44:39 GMT

    [6] => Connection: close

)

文件名里面没有扩展名，杂乱无章的。

Related labels：
application content gt length nbsp
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