Dayon

Hi, I've written a tutorial about stopping normal spam bots: See attached image Anti Spam-Bot Form This is a simple trick that will fool the average spam-bot into identifying itself: Step 1: Add an extra field to your form. Step 2: Hide the form from human viewers. This is best done by giving the input a CSS class with "visibility: hidden;" Step 3: See if the form is filled in, and if it has been filled: take action. How it Works The human viewer will not see the extra field, so they will not fill it in. A spam bot views pages in text, so it will see the form. The average spam bot will fill every field in a form. If the form has been filled, it's most likely to have been done by a spam bot. Code The PHP code would look a bit like this: if($_POST["extrafield"] != ""){ // spam bot exit; }else{ // human // continue as normal... } depending on how you have coded the rest of your form, it will differ. Finish This is a simple way to detect the average spam-bot. On a small site ran by a webmaster with little time this is great. Especially with contact forms. Extra Depth Here's some extra bits to think about: - If the spam-bot is using your field names, you could randomly generate a regular field names, like "name" and "id" to fool them. - If the spam bot is using the order of your fields, you could randomly put the extra field between your real fields. - Once you know of a spam bot you can save its IP for banning later. Got Coder? If you've got a site with spam bots bombarding you all the time, and you have a coder, a Captcha is a good solution. Bye I hope this little tutorial helps you with your spam bot problems. Link to original with text formatting: Anti Spam Bot Form Tutorial