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From:Robert Roggenbuck Date:Fri Jan  8 13:03:07 2010
Subject:Re: Need help with a login script
At first assure that the correct values come from the database (see below).
May be that's enough...

Greetings

Robert


Adam Jimerson schrieb:
[snip]
> if (param) {
> form_verify (@user);
> print "Username: $user[0]\n<br />Password: $user[1]<br />\n"; #use for debugging
> my $sth = $dbh->prepare("SELECT * FROM Users WHERE 'UserName' = '$user
> [0]' AND 'Password' = '$user[1]'"); #check that username and password exist and match
Better to replace '*' with the field name You need, do not quote field names,
use placeholders and include only UserName in the WHERE-clause:

"SELECT Password FROM Users WHERE UserName = ?"

> $sth->execute();
Then the execute() must look like:

$sth->execute($user[0]);

> my @Login = $sth->fetchrow_array();
Now better say:
my ($pw) = $sth->fetchrow_array();

> $sth->finish();
> if (($Login[2] eq "$user[0]") && ($Login[3] eq "$user[1]")) {
Just:

if ($pw eq "$user[1]") {

> print "<p>Hello $user[0]!</p>\n"; #debugging use only, will add on
> later
> } else {
> print "<p>Login Failed!</p>\n";
> print "Username: $user[0]\n<br />Password: $user[1]\n"; #use for
> debugging
> }
> } else {
> print start_form;
> print_form();
> print end_form, "\n";
> }
>
[snip]
Navigate in group perl.beginners.cgi at sever nntp.perl.org
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