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Perl in a Nutshell

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The LWP Library
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scan

 $h->scan($sub)

Invokes the subroutine referenced by $sub for each header field in the object. The subroutine is passed the name of the header and its value as a pair of arguments. For header fields with more than one value, the subroutine will be called once for each value.


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Reference: remove_headerBook Index17.3 The HTTP Modules