Solved

perl error

Posted on 2000-05-09
4
139 Views
Last Modified: 2010-03-05
I am geting information from user
and want to print an error message if any of the fields were empty. But i don't wanna go thorought each entry one bye one with a different if statement for each of them. Is there any way to do this all in one or some easier way of doing it rather than checking each entry ??
0
Comment
Question by:Dewaana
  • 3
4 Comments
 
LVL 8

Accepted Solution

by:
shlomoy earned 100 total points
ID: 2791987
If your fields data is in an array called @fields then you can do:

foreach $field (@fields) {
      error_message() if (!defined($field));
}
0
 
LVL 8

Expert Comment

by:shlomoy
ID: 2791997
use CGI;
@names = $query->param
foreach $name (@names) {
      error_message() if (!defined($name));
}


where error_message() is a subroutine which handles the error message you'd like to output to the user.
0
 

Author Comment

by:Dewaana
ID: 2792095
thank u very much
0
 
LVL 8

Expert Comment

by:shlomoy
ID: 2792281
Sure.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've just discovered very important differences between Windows an Unix formats in Perl,at least 5.xx.. MOST IMPORTANT: Use Unix file format while saving Your script. otherwise it will have ^M s or smth likely weird in the EOL, Then DO NOT use m…
Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question