php - Simple contact form HTML with Captcha? -

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i looking simple html contact form has recaptcha or type of anti-spam features. tried multiple tutorials complicated , can't work. need name, email, , message field (and recaptcha , submit button). know can find simple contact form html?

if have been struggling implement recaptcha go 

$a=rand(2,9); // number between 2 , 9 $b=rand(2,9); // number between 2 , 9. can change according wish  $c=$a+$b;

on php page show

echo $a."+".$b."="<input type="text" name="recaptcha" />

and check whether textbox value equal $c.

this simple recaptcha sort of thing can implement prevent bots.


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