Free PHP Scripts by Gscripts.net

If you use a normal contact form then spammers will fond a way to automatically send junk messages through that form, so you need a way to verify that the sender is an actual person and not an automated script.

A good solution for this is to use an random code that is generated by a script the code will be displayed as an image so only a person could read the image and type the number. This practice is called Captcha image validation. The image also has a noise added to avoid any existent automated scripts that could read the text from the image.

The contact form also makes sure the user filled all the form fields correctly, when all fields are completed and the text entered inside email box is an email address.

The contact form contents

The form will contain a link to an image, the link to image is actually a link to a php file generating the image, user will have to fill the image code inside a form field once with the other message contents (subject, sender email, etc) then click submit, if the code in the image will not be correct then message is not sent and user is asked to fill the image code again, the other form fields remain filled.