Hi Doug,
Download and install this - http://www.fastsecurecontactform.com/download-php-script

You can use your existing keys for the built in recaptcha feature within the form you create. Make a donation if you're happy with it, the guy has really put some serious time into developing this.



* Database Migrations and Conversions*
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If you've been using this you should probably update it or just get rid of it, see the authors notes here: http://www.fastsecurecontactform.com/download-php-script

Peter

ServeLink
Professional ecommerce web hosting for ASP & PHP
https://servelink.com

Take a look at our image upload/resize tool for the ASP cart
https://servelink.com/clients/cart?gid=7

Bump. I also have this requirement to put a captcha on my contact page. If the method described here is no longer reliable is there a better way? Cheers, L

Laurence Campbell

Hi Laurence

You could have a look at the other contact forms suggested here https://www.ecommercetemplates.com/support/topic.asp?TOPIC_ID=78268

Andy

Please feel free to review / rate our software

If your form has a landing page, I can show you how to use the google recaptcha very easily with the same keys you use for your store.
You could use it anywhere on your site and it's very simple.

Ok, you need a thanks, landing page for your contact form, but here is what you can do.

Get your site key from google - it's the same site key you would use in your admin.
Google actually lets you list multiple websites where you can use this site key.

In the head of your page where your contact form is, add this
<script src='https://www.google.com/recaptcha/api.js'></script>

Then anywhere in your form, add the recaptcha feature (usually the last input in your form)
<div class="g-recaptcha" data-sitekey="xxxxxxxxxxxx_xxxxxxxxxxx_xxxxxxxxxxx"></div>
be sure to insert your site key in that space there....

Then make sure your form is going to a thanks page on submit.
example (form name="contactform" method="post" action="contact-thanks.asp")

Lastly,
Add the code below to your landing page where your form results are processed.
(this is the .asp version)
<%
If Request.Form("g-recaptcha-response") = "" Then
Response.write("<p class=""results"">Sorry, but you did not complete the Captcha to prove you are human.<br />Please go back to try again</p>")
Response.End
End If
%>
Form results processed here.....


You should be able to do this check with .php and javascript as well.
It's quite simple.

What is the correct way to do this for a contact form with PHP. I get 20-30 nonsense spam contact form submissions per day. I am not very knowledgeable about making the changes.

The instructions I posted above were actually weak. They mostly work for humans and not bots... LOL

I was able to make changes on my end and make use of the ECT logic for handling the captcha.
I am using it on an .asp form with a separate thanks.asp page. I get zero spam on my forms for months now.
Do you have a custom form for your contact page?
I can take a look but I think it's javascript so will likely work for .php.
I can lookup my changes in a bit and share them.

David

Here is contact form:
https://dogtagmachines.com/contact-us/