If local_base=admin&func=save&base=staff are supposed to be part of the url parameter, then the source of the problem is that you are dealing with a bad URL - see Percent_encoding. Again, that is not a legal URL. If a parameter must contain any of the reserved characters (in this case, it contains 5 different reserved characters), you must escape it. See URI::Escape. Are you generating this link in a different script, or is it coming from the outside? This should really be fixed where it is coming from - the URL should look like: http://example.mycgi.com:9999/service?func=search&institute=DEMO&calling_app=ABC&url=http%3A%2F%2Freturn.link.com%3A8997%2FF%3Flocal_base%3Dadmin%26func%3Dsave%26base%3Dstaff

If this is coming from the outside and there is no way to get them to fix their code, you can check the environmental variables for the request URL: $ENV{REQUEST_URI}.

For some intro material on working with Perl CGI, check out Ovid's CGI Course - Resurrected and Updated!. In particular, part of your issue is discussed in lesson 2.

In reply to Re: How to parse URL in CGI.pm by kennethk
in thread How to parse URL in CGI.pm by asafp

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