I don't know if it is the same one you found, but I have implemented this one on some of my sites: http://www.kloth.net/internet/bottrap.php (That is the link to the instructions) It's an older script, but it seems to work like a charm. I have yet to receive a single bot submission. --- In php-objects@xxxxxxxxxxxxxxx, "Dean H" <deanhouseholder@...> wrote: > > I found an ingenious idea online (don't remember the site) and implemented > it on a web-form and have 100% spam filtering and 100% valid emails going > through. > > The concept is that you set a trap that the spam bots will fall into. They > crawl your pages looking for forms. When they find forms they try to fill > them out with their pre-created fields. They will look for fields such as > Name, Address, Subject, Body, Email, Phone, etc. Then they will craft a GET > string based off of the <form action=""> url. > > So, I created a new input text field called "email2" which was used for the > REAL email field and I used my regular "email" input field as a trap. Here > is my (very simplified) code: > > <form name="info" action="send.php" method="post"> > <input size="1" name="email" type="text" style="width: 1px; height: 1px; > border: solid 0 #FFF;" /> > Name: <input size="30" type="text" name="name" /><br /> > Email: <input size="30" type="text" name="email2" id="email" /><br /> > Message: <br /><textarea name="message" id="message" rows="10" > cols="29"></textarea><br /> > <input type="submit" value="Send now" class="submit"/> > </form> > > You'll notice that the "email" field has some css which is telling it to be > 1x1 pixels with a white border. This makes it invisible and no human should > ever fill this out. The spambots, on the other hand, come to the site, fill > out ALL the fields (especially the "email" field) and submit it. > > At that point you just write some PHP code to filter out all emails which > have the "email" field filled out and continue posting/emailing the valid > ones. In this case, my intent was to send emails upon submission. Here is > the php validation code I wrote to do this: > > <?php > /* SPAM TRAP */ > $Email = isset($_POST['email2']) ? $_POST['email2'] : ''; > $Email_fake = isset($_POST['email']) ? $_POST['email'] : ''; > $Name = isset($_POST['name']) ? $_POST['name'] : ''; > $Message = isset($_POST['message']) ? $_POST['message'] : ''; > $SendTo = 'user@...'; > > /* Spam bot filter */ > if($Email_fake == ""){ > // Legitimate email > mail($SendTo,'[Spam-free email]','Sent: '.date('m/d/Y h:i:s')."\nSender: > $Name ($Email)\nQuestion: $Message") > }else{ > // Spam Email > mail($SendTo,'[Spam email caught]','Sent: '.date('m/d/Y > h:i:s')."\nSender: $Name ($Email)\nFalse Email: $Email_fake\nQuestion: > $Message"); > } > print '<h2>Thank you for your submission.</h2></p>'; > // End of Spam Filter > ?> > > Hope this works for you. It's working PERFECTLY for me. 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