doujiu6976 2014-10-18 17:55
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Content-Disposition Regex模式不起作用

I have this string (for example)

Content-Disposition: attachment; filename="Eminem - Not Afraid1.3gp"

and use this pattern on preg_match()

([^.]+)\:\s([^.]+)

What I want is:

Array
(
    [0] => Content-Disposition: attachment; filename="Eminem - Not Afraid1.3gp"
    [1] => Content-Disposition
    [2] => attachment; filename="Eminem - Not Afraid1.3gp"
)

But I get

Array
(
    [0] => Content-Disposition: attachment; filename="Eminem - Not Afraid1
    [1] => Content-Disposition
    [2] => attachment; filename="Eminem - Not Afraid1
)

What is wrong with this pattern?

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2条回答 默认 最新

  • dsfsda121545 2014-10-18 17:58
    关注

    Problem is with the second ([^.]+). It stops capturing after seeing the . in the filename. So use (.+) instead of ([^.]+) in-order to capture all the remaining characters,

    ([^:]+):\s(.+)
    

    DEMO

    I think it's better to use anchors.

    ^([^:]+):\s(.+)$
    

    Explanation:

    ^                        the beginning of the string
    (                        group and capture to \1:
      [^:]+                    any character except: ':' (1 or more
                               times)
    )                        end of \1
    :                        ':'
    \s                       whitespace (
    , , \t, \f, and " ")
    (                        group and capture to \2:
      .+                       any character except 
     (1 or more
                               times)
    )                        end of \2
    $                        before an optional 
    , and the end of the
                             string
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
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