On Feb 2, 2:23 pm, wdflann...@gmail.com (Slide) wrote:
> I have implemented a site using Perl, but I'm not really a Perl
> programmer, and now I want to modify the code so that dynamic pages
> are generated with a last-modified field to so that Google will re-
> crawl the pages.
>
> This is what I'm doing to generate the header now ....
>
> print "Content-type: text/html\n\n";
>
> So I think I need to precede that with
>
> print "Last-Modified: Tue, 02 Feb 2010 00:00:00 GMT \n";
>
> Is that right? Does the order of the header lines make any
> difference? Is the format for the date in the Last-Modified line
> good?
Yes, I believe the order is significant since the output is
screwy if you flip the order of the key/value pairs below:
my $cgi =CGI->new;
print $cgi->header(-type => "text/html",
-last_modified => "Tue, 02 Feb 2010
00:00:00 GMT");
Output:
Last-modified: Tue, 02 Feb 2010 00:00:00 GMT
Content-Type: text/html; charset=ISO-8859-1
Note: -type a CGI shortcut for Content-type.
underscores are replaced with hypens
--
Charles DeRykus
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