JFB Hook to add terms from front-end

terms-front-end.php

add_action( 'jet-form-builder/custom-action/create_terms', function( $request, $action_handler ) {

$terms = explode(',', $request['terms']);

$taxonomy = $request['tax']; // Replace with your actual taxonomy name

foreach ($terms as $term) {
    // Check if the term already exists
    $existing_term = term_exists($term, $taxonomy);

    // If the term doesn't exist, create it
    if ($existing_term === 0 || $existing_term === null) {
        wp_insert_term($term, $taxonomy);
    }
}

}, 10, 2 );