Hi folks,
Perl is always killing me. I always do it on my computer first and then upload to the server in our lab. And oh my, never ever be correct to run on the lab. This time I got the internal error. I tried to add and delete multiple lines and found out that is possibly due to tie::File.
Could you please help me to solve the problem? I am dying for it :(
Here's the code. -
#!/usr/bin/perl
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#use CGI::Carp qw(fatalsToBrowser);
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#use strict;
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use CGI;
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use Tie::File;
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$query = new CGI;
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$data_file="nameList.cgi";
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open(DAT, $data_file) || die("Could not open file!");
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@raw_data=<DAT>;
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tie @line, 'Tie::File', $data_file or die("Could not open file!");
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print $query->header();
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print "Content-type: text/html\n\n";
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print "<HTML><HEAD>\n";
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print "<TITLE>Thanks!</TITLE></HEAD>\n";
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print "<BODY>";
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$first = $query->param("first");
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$last = $query->param("last");
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$email = $query->param("email");
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print "<P>$first $last, thank you for signing up! Please click <a href=\"list.pl\">here</a> to see the signup table for confirmation and don't repeatly signing up.</P>\n";
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$count = 0;
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@WS = $query->param("ws");
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foreach $ws(@WS){
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$line[$ws-1].="$first $last, $email|";
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}
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close(DAT);
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print "</BODY>\n";
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print "</HTML>\n";
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-------------------------------------------------------------------------------------------------------
And I've tried use warnings, add and remove -w.....doesn't work.........cr ying T-T
Cannot appreciate more.
20  2097  eWish 971
Recognized Expert Contributor
Welcome to TSDN Casybay!
You have posted code into the forum without using proper code tags. It is best practice here on TSDN to wrap all code posted into the forum in code tags.
Code tags start with [code] and end with [/code]. If you need an example other than this one, the please refer to the REPLY GUIDELINES (or POSTING GUIDELINES if you are starting a discussion) to the right of the Message window. You will find the examples and suggestions for posting there.
In addition, you can also add the language to your code tags. Here is an example:
[code=perl]
<some code>
[/code]
Please know that I have fixed your posts above to include the proper code tags. Please be sure and use code tags in all of your future posts here on TSDN.
- Moderator
eWish 971
Recognized Expert Contributor
What errors did you get? Did you check the error logs to see what was logged? I would uncomment the following lines and add use warnings; as well. - use CGI::Carp qw(fatalsToBrowser);
-
use strict;
Then I would declare the variables correctly using my. What OS are you using?
KevinADC 4,059
Recognized Expert Specialist
You're not actually using Tie::File to do anything in the code you posted. Are you just experimenting?
To eWish, sorry for that. I didn't notice that. I am using Windos XP in my computer and the lab's server OS is Linux, and for both of them, I am using Apache.
To KenvinADC, yes, I did. Please see line 44. I am going to write something to the file as my understand.
Thank you so much for you guys' replies.
KevinADC 4,059
Recognized Expert Specialist
Sorry, I missed those lines.
Untested code: -
#!/usr/bin/perl
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use CGI::Carp qw(fatalsToBrowser);
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use strict;
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use warnings;
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use CGI;
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use Tie::File;
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use Fcntl;
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my $query = new CGI;
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print $query->header,$query->start_html('Thanks!');
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my $data_file = "nameList.cgi";
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tie my @line, 'Tie::File', $data_file, mode => O_RDWR or die "$!";
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my $first = $query->param("first");
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my $last = $query->param("last");
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my $email = $query->param("email");
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print $query->p(qq{$first $last, thank you for signing up! Please click
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<a href="list.pl">here</a> to see the signup table for
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confirmation and don't repeatly signing up.});
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my @WS = $query->param("ws");
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foreach my $ws (@WS){
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$line[$ws-1].= "$first $last, $email|";
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}
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untie @line;
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print $query->end_html;
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KenvinADC, I will try it tomorrow when I go to the lab. Appreciate that :)
Hi KenvinADC, it seems like the code you modified for me still doesn't work.
KevinADC 4,059
Recognized Expert Specialist
Unless you can be more specific I can't help.
Sorry for that KevinADC, cuz I am waiting for my permission to access to the error log, so before that, I cannot tell you more specific about the error.
Since there's something wrong with tie::File, could anyone inspire me what could possibly cause error with this function? Or is there anyother way to read and write a line from and to a file using perl?
Appreciate :)
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