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perl error

Posted on 2000-05-09
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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 ??
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Question by:Dewaana
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4 Comments
 
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Accepted Solution

by:
shlomoy earned 400 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));
}
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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.
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Author Comment

by:Dewaana
ID: 2792095
thank u very much
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Expert Comment

by:shlomoy
ID: 2792281
Sure.
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