Solved

perl error

Posted on 2000-05-09
4
141 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 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

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Email validation in proper way is  very important validation required in any web pages. This code is self explainable except that Regular Expression which I used for pattern matching. I originally published as a thread on my website : http://www…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
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…
Six Sigma Control Plans

695 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