Is it possible to add hCaptcha

I did some testing on how to add a hCaptcha to HTML forms:

1. Install and activate the hcaptcha plugin, create a free hCaptcha account and add your credentials in the hCaptcha plugin settings
2. Add the following code snippet to your website:

add_filter('hf_validate_form', function( $error_code, $form, $data ) {
$result = hcaptcha_verify_post();
if ( null !== $result ) {
$error_code = 'catcha_failed';
}
return $error_code;
},10,3);

add_filter(
'hf_template_tags',
function( $tags ) {
$tags['hcaptcha'] = do_shortcode( '[hcaptcha]' );
return $tags;
}
);
add_filter( 'hf_validate_form_request_size', false );

3. add {{hcaptcha}} to your HTML-Forms fields where you want to show the captcha.

Hope that helps. If you have any questions, please let me know!

Man,

You saved my day.
I thank you very much.

@lapzor

This works brilliantly in php 7.4 but when switching to 8.0 the forms fail to send and I get this message in the PHP error log;

[17-Oct-2023 12:19:15 UTC] PHP Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, no array or string given in wp-includes/class-wp-hook.php:308

Do you know how to fix this?

Thanks

• This reply was modified 1 year ago by goraptors.

Please change

add_filter( 'hf_validate_form_request_size', false );

to

add_filter( 'hf_validate_form_request_size', '__return_false');

That should solve that error

@lapzor Thank you, that solved the issue!