JetFormBuilder - Call hook check badwords (banlist)

code

// This hook will connect to a specified field and check its contents. 
// It checks the specified "dictionary" to see if there are any words that are in the banned list. 
// If so, it does not run through the form, but returns failed. A custom message can be added.

// place the code in the child theme functions.php or a custom code snippets plugin, like FluentSnippets

// How to use. Go to your jetformbuilder form. Add a new Call hook post submit actions top of the action list. Paste the following hook name:
// badword-validator
// HELP IMAGE: https://prnt.sc/R4E5mMrAVOSA
// paste the following code:

// Everyhere in the code change the: my_custom_field_content with your target form field NAME
// overwrite the offensive word array with yout own banned words

use Jet_Form_Builder\Exceptions\Action_Exception;

/**
 * Validate the custom field before the form submission.
 * If the custom field contains any offensive words, throw an error and prevent the form submission.
 */

add_filter('jet-form-builder/custom-filter/badword-validator', function($result, $request, $action_handler) {
    // List of offensive words to check
    $offensive_words = array(
        'badword1', 'badword2', 'badword3', 'badword4', 'badword5', 
        'badword6', 'badword7', 'badword8', 'badword9', 'badword10', 
        'badword11', 'badword12', 'badword13', 'badword14', 'badword15', 
        'badword16', 'badword17', 'badword18', 'badword19', 'badword20'
    );

    // Check if the custom field exists and contains any offensive words
    if (isset($request['my_custom_field_content'])) {
        $content = strtolower($request['my_custom_field_content']); // Convert content to lowercase for case-insensitive comparison
        foreach ($offensive_words as $word) {
            if (strpos($content, strtolower($word)) !== false) {
                // Throw an error with a custom message and the standard 'failed' status
                throw new Action_Exception(
                    __('The provided content contains inappropriate language.'), // Custom error message
                    'failed' // Standard error status
                );

                // Return false to indicate validation failure
                $result = false;
            }
        }
    }

    return $result;
}, 10, 3);