CGI.pm parameter format

talexb has asked for the wisdom of the Perl Monks concerning the following question:

After battling with CGI.pm, cookies and redirection, this morning I finally made some progress when I changed my script from

  print redirect ( cookie => $Cookie, uri => $URL );
[download]

  print redirect ( -cookie => $Cookie, -uri => $URL );
[download]

Can someone explain the difference?

Another example is the login form: should there be hyphens in front of 'border', 'cellspacing' and 'cellpadding'?

    print p, startform,
      table ( { border => 1, cellspacing => 0, cellpadding => 2 },
        Tr ( th ( "UserID:" ), td ( textfield ( USERID ) ),
          td ( { rowspan => 2 }, submit ( "Login" ) ) ),
        Tr ( th ( "Password:" ), td ( password_field ( PASSWORD ) ) ) 
+),
      endform;
[download]

I have been using CGI.pm on and off for some time, and most of the time it works like a champ. Should I be thinking that I'm passing command line options in, hence the leading hyphen?

This is all based on merlyn's Basic Cookie Management column.

--t. alex
but my friends call me T.

Comment on CGI.pm parameter format Select or Download Code

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Re: CGI.pm parameter format by Joost (Canon) on Sep 12, 2002 at 13:31 UTC
Most methods in CGI.pm have several ways of passing parameters: As 'numbered' parameters (NOT using a leading dash) `$q->method($param1,$param2);` [download] As named parameters (with leading dash) `$q->method(-name1 => $param1, -name2 => $param2)` [download] As named parameters (with a hashref) `$q->method( { name1 => $param1, name2 => $param2 } )` [download] Which one you want is up to you, but you cannot mix them, hence the insistance on a leading dash in variant 2. Hope this clears it up :-) Joost. `-- Joost downtime n. The period during which a system is error-free and immune from user input.` [download]	[reply] [d/l] [select]
Re: Re: CGI.pm parameter format by talexb (Chancellor) on Sep 12, 2002 at 13:37 UTC
Excellent. That makes sense -- after spending much of the last 24 hours trying to figure this out, I finally see the light. Thanks brother Joost. :) --t. alex but my friends call me T.	[reply]