Hook for Validating Custom Forms

Simply add a check using the hook apbct_wordpress_protect_from_spam by passing the POST or GET data from the form:

                                

                                    
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                               $result = apply_filters('apbct_wordpress_protect_from_spam', $_POST);

And get the result: $result['is_spam'] = '0' or '1'. Accuracy: 99.998%. After the visitor submits the form, the request reaches your form handler.

In the handler, add the following filter: $result = apply_filters('apbct_wordpress_protect_from_spam', $_POST);

After the check, the result will be stored in the $result array:

                                

                                    
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                               [
    'is_spam' => '0',
    'message' => '',
 ];

If 'is_spam' => 1, the message will contain the reason for blocking:

                                

                                    
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                               [
    'is_spam' => '1',
    'message' => '*** Forbidden. Sender blacklisted. Anti-Spam by CleanTalk. ***',
 ];

What you do with this message is up to you. If you want to automatically redirect the spammer to a block page, specify the redirect_to_block_page parameter:

                                

                                    
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                               $result = apply_filters('apbct_wordpress_protect_from_spam', $_POST, ['redirect_to_block_page' => true]);

In this case, the spammer will be automatically redirected to the block page. The protection works when the plugin is enabled and the service is active.