I'm sorry I missed this thread when I needed it, which is now. I hope someone finds this reply...er, question when viewing Newest Nodes. I quote from the original post:
"You have code that interpolates form data directly into the string."
Do you still need placeholders for security if you are untainting all user form input?

CGI: 
use Validate;
use strict;
use CGI qw(:standard);
    
    my $firstname = Validate->alphanum( param( 'firstname' ) );
    print "Missing or invalid first name\n" unless $firstname;
    
my $stmt = "INSERT INTO tablename VALUES ('$firstname')";
excute...

[download]
Module: 
package Validate;

sub alphanum {
    my ($class, $value) = @_;
    return unless $value =~ /^([A-Za-z0-9 -]*)$/;
    return "$1";
}
1;

[download]

—Brad
"A little yeast leavens the whole dough."

In reply to Re: Use placeholders. For SECURITY! by bradcathey
in thread Use placeholders. For SECURITY! by tilly

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