Use double quotes if you want the variable $co to be interpolated.

my $param = param("para_$co");

[download]
And also you can drop that @Co bit too. 
foreach my $co (1..2) {
  my $param = param("para_$co");
  do_something($param);
}

[download]

In reply to Re: CGI param problem by Roger
in thread CGI param problem by LupoX

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