Probably you want self_url in CGI. 

CREATING A SELF-REFERENCING URL THAT PRESERVES STATE INFORMATION:

    $myself = self_url;
    print q(<a href="$myself">I'm talking to myself.</a>);

[download]

It's best mixed with CGI->url (see docs) and URI/URI::QueryParam for robustness and ease of reading/maintenance.

In reply to Re: Perl-CGI refresh with different param(s)?? by Your Mother
in thread Perl-CGI refresh with different param(s)?? by jonc

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