Adding role selection during registration

woo_registration_user_role_select.php

/**
 * @snippet       WooCommerce Role Select During Registration
 * @how-to        https://woohacks.github.io/
 * @author        Nick Mkrtchyan
 * @compatible    WooCommerce 5.0
 */
function register_role_select_option() {
    global $wp_roles; ?>
    <p class="form-row form-row-wide">
        <label for="reg_billing_phone"><?php echo __( 'Student or Instructor', 'woocommerce' ) ?></label>
        <select name="role" class="input">
            <?php
            foreach ( $wp_roles->roles as $key=>$value ) {
                // Exclude roles like Admin, Author and etc...
                if ( ! in_array( $value['name'], [ 'Administrator', 'Author', 'Editor', 'Contributor'] ) ){
                    echo '<option value="'.$key.'">'.$value['name'].'</option>';
                }
            }
            ?>
        </select>
    </p>
    <?php
}
add_action( 'woocommerce_register_form', 'register_role_select_option' );