Perl in a Nutshell, 2nd Edition

HTTP::Headers

This module deals with HTTP header definition and manipulation. You can use these methods on HTTP::Request and HTTP::Response objects to retrieve headers they contain, or to set new headers and values for new objects you are building.

The constructor for an HTTP::Headers object looks like this:

$h = HTTP::Headers->new([name => val],...);

This code creates a new headers object. You can set headers in the constructor by providing a header name and its value. Multiple name => valpairs can be used to set multiple headers.

The following methods can be used by objects in the HTTP::Headers class. These methods can also be used on objects from HTTP::Request and HTTP::Response, since they inherit from HTTP::Headers. In fact, most header manipulation will occur on the request and response objects in LWP applications.