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Posted by totalstranger on 08/29/06 01:57
On or about 8/28/2006 7:07 PM, it came to pass that J W wrote:
> Hello,
>
> I am kind of a newb to php and could use some help. I have made a form to
> email php page that uses the mail function to send me the results of a
> form. The php portion looks like this:
>
> <?PHP
> if ($submit) {
> $Address = !empty($Address) ? $Address : 'NA';
> $Address2 = !empty($Address2) ? $Address2 : 'NA';
> $City = !empty($City) ? $City : 'NA';
> $State = !empty($State) ? $State : 'NA';
> $Country = !empty($Country) ? $Country : 'NA';
> $Postal = !empty($Postal) ? $Postal : 'NA';
> $Phone = !empty($Phone) ? $Phone : 'NA';
> $Company = !empty($Company) ? $Company : 'NA';
> $EmailNot = !empty($EmailNot) ? $EmailNot : 'NO';
> $today = date("m/d/y");
> mail("me@mydomain.com",
> "Info on $Regarding",
> "A User has submitted a Contact form on Mydomain.com
> on $today
> ================================================
> Name: $FName $LName
> Email: $Email
> Address: $Address
> $Address2
> $City
> $State
> $Country
> $Postal
> Phone: $Phone
> Company: $Company
> Message: $Comment
> Referer: $Referer
> Opt-Out: $EmailNot",
> "From: $FName $LName <$Email>");
> header ("location: thanks.html");
> } // end if they hit "Submit"
> ?>
>
> Later on the page is the form itself (edited for brevity):
>
> <form name="contactinfo" method="post">
> (various input areas)
> </form>
>
> I know that as is this page isn't secure from a spammer exploiting it for
> their own purposes. Can someone help me clean it up to protect against
> that kind of thing? I believe the input data has to be validated /
> scrubbed or something? I've been googling and while I understand the
> concept I'm not quite getting how to do it within the framework of what I
> have already created,
>
> Thanks much.
Validate each field, look at sprintf and mysql_real_escape_string. Also
search for quote_smart functions or classes.
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