wordpress subscriber with contact form 7 - wordpress

Question

Does anyone know if with contact form 7 it is possible to have a checkbox that when it is activated by the visitor, this visitor is registered as a wordpress user, as a subscriber?
After the comment of Howard E, the question changes to...
How can be used wpcf7_before_send_mail for register a new user with the data of the form?
something like this, but I don't know if it is completely correct...
add_action( 'wpcf7_before_send_mail', 'register_user' );
function register_user($cf7) {
$form_id = $cf7->id();
if ($form_id == 300 || $form_id == 301 || $form_id == 302) {
$submission = WPCF7_Submission :: get_instance();
}
if ($submission) {
if (empty($posted_data)) { return; }
$accept = $posted_data['acceptance-register-yes']; //acceptance check to be registered
if (empty($accept)) { return; }
$email = $posted_data['your-email'];
$name1 = $posted_data['your-name'];
$name2 = $posted_data['your-last-name'];
$name = ''; //here will go function to delete spaces and generate user name from $name1 + $name2
$pass = ''; //here will go function to random password
function create_user($n,$p,$e){
if (!username_exists($n) && !email_exists($e)) {
$user_id = wp_create_user($n, $p, $e);
$user = new WP_User($user_id);
$user->set_role( 'subscriber' );
}
}
create_user($name,$pass,$email);
}
}
many thanks

Answer 1

You can create a user and hook into wpcf7_before_send_mail like this.
function wp_create_custom_account(){
// Get the WPCF7 Submission instance
$submission = WPCF7_Submission::get_instance();
if ($submission) {
$posted_data = $submission->get_posted_data();
// Get the posted variables
$username = isset($posted_data['username'])?$posted_data['username']:'';
$password = isset($posted_data['password'])?$posted_data['password']:'';
$eml = isset($posted_data['eml'])?$posted_data['eml']:'';
// This can be radio or checkbox. Adjust your code accordingly
$radio = isset($posted_data['radio'][0])?$posted_data['radio'][0]:'';
if ($radio) {
$user = $username;
$pass = $password;
$email = eml;
if ( !username_exists( $user ) && !email_exists( $email ) ) {
$user_id = wp_create_user( $user, $pass, $email );
$user = new WP_User( $user_id );
$user->set_role( 'subscriber' );
}
}
}
}
add_action('wpcf7_before_send_mail','wp_create_custom_account');