This is related to Problems with 'strict' and variables created on the fly but a different application. I have a number of items I want to get from an HTML form and would like to put these into simple variables. I could put the data into a Hash but I'm using the data in SQL statements which result in very long, difficult to read, lines.

Here's what I've done so far. Examples 1 and 2 do not work. Examples 3 and 4 work correctly. 

use strict;
use CGI;
my $q = new CGI;

# 1. The simple solution:... which will NOT work with 'strict'. Cannot
+ create variables on the fly ($$fieldname)
@fields = $q->param;
foreach $fieldname (@fields) {
    $$fieldname = $q->param($fieldname);
    # within this loop: also check for specific, or no data on each fi
+eld
}

# 2. I applied 'strict' and I got the following errors.
#  Global symbol "varA" requires explicit package name...
#  Global symbol "varB" requires explicit package name...
#  etc for each variable.</i>
#
# So I tried this. The code ran without error, but nothing got assigne
+d to the variables.
my ($varC,$varB,$varA,$varD,.....); # an unsorted list of the expected
+ field names
my @fields = $q->param;
foreach my $fieldname (@fields) {
    no strict;
    $$fieldname = $q->param($fieldname);
    # within this loop: also check for specific, or no data on each fi
+eld
}
 
# 3. A workable solution but, if the incomming data gets corrupted, it
+ could end up in the wrong variables.
my @tempdata;
my $i = 0;
my @field = sort $q->param;  # sorted list of the field names
foreach my $fieldname (@fields) {
    $tempdata[$i] = $q->param($fieldname);
    # within this loop: also check for specific, or no data on each fi
+eld
    $i++;
}
my ($varA,$varB,$varC,$varD,.....) = @tempdata; # $vars in sorted orde
+r 

# 4. Using a hash which works as expected. 
my %data;
my @field = $q->param;
foreach my $fieldname (@fields) {
    $data{$fieldname} = $q->param($name);
    # within this loop: also check for specific, or no data on each fi
+eld
}

[download]
Is there a simple way to accomplish this? or Should I use a Hash; and be done with it? or Simply not use strict? What's the downside in a relatively short program (350 lines)?

In reply to Creating variables while using 'strict' by nedals

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