Hi guys, first time posting!
Im trying to come up with new captcha ideas, I'm considering having the form either have a checkbox or radio buttons that say "I am a human". Has anyone here tried this? Did you get spam? If I were to do something like this, do you think it might help if the labels for the radio buttons were opposite to the values and then the the form could only be submitted if you clicked (value of) robot. Like this.
<label>Human</label>
<input type="radio" value="robot">
<label>Robot</label>
<input type="radio" value="human" checked>
<?php if($spam_check === "human") {$error .= "no robots allowed"}
Do you think something like this would trick most spam bots?