ソーシャル登録の前にユーザーに権限を選択させる方法

色々やってみたのですが上手くいきません。

以下のコードと

<?php

add_action('nsl_before_register', function ($provider) {
    /** @var $provider NextendSocialProvider */

    /**
     * You must return true if you want to add custom fields
     */
    add_filter('nsl_registration_require_extra_input', function ($askExtraData) {
        return true;
    });

    add_filter('nsl_registration_validate_extra_input', function ($userData, $errors) {
        /** @var $errors WP_Error */

        $isPost = isset($_POST['submit']);

        if ($isPost) {
            /**
             * You must add an error if your fields are not filled or does not fulfill your validation.
             * If no errors added, that means that the register form is fine.
             */

            if (!empty($_POST['favorite_color']) && is_string($_POST['favorite_color'])) {
                $userData['favorite_color'] = $_POST['favorite_color'];
            } else {
                $userData['favorite_color'] = '';
                $errors->add('favorite_color_missing', '<strong>' . __('ERROR') . '</strong>: Favorite Color can not be empty.', array('form-field' => 'favorite_color'));
            }
        } else {
            /**
             * Fill up user data with default values to prevent the notice in the form
             */
            $userData['favorite_color'] = '';
        }

        return $userData;
    }, 10, 2);

    /** You can use nsl_registration_form_start and nsl_registration_form_end action.  */
    add_action('nsl_registration_form_start', function ($userData) {
        ?>
        <p>
            <label for="favorite_color">Favorite Color<br/>
                <input type="text" name="favorite_color" id="favorite_color" class="input"
                       value="<?php echo esc_attr(wp_unslash($userData['favorite_color'])); ?>" size="20"/></label>
        </p>
        <?php
    });

    /**
     * $user_id contains the created user's id
     * $userData contains the previously validated input
     */
    add_action('nsl_registration_store_extra_input', function ($user_id, $userData) {
        add_user_meta($user_id, 'favorite_color', $userData['favorite_color']);
    }, 10, 2);
});

テーマで使用しているclass-woocommerce-registration.phpのコード（以下）を組み合わせてみたのですが、

<?php

class Jobify_WooCommerce_Registration {

	public function __construct() {
		add_action( 'woocommerce_register_form', array( $this, 'register_form' ) );
		add_filter( 'woocommerce_new_customer_data', array( $this, 'new_customer_data' ) );
	}

	public function new_customer_data( $data ) {
		if ( ! isset( $_POST['reg_role'] ) ) {
			return $data;
		}

		$role = esc_attr( $_POST['reg_role'] );
		$whitelist = $this->get_registration_roles();

		if ( ! in_array( $role, array_keys( $whitelist ) ) ) {
			return $data;
		}

		$data['role'] = $role;

		return $data;
	}

	public function get_allowed_roles() {
		$roles = get_theme_mod( 'registration-roles', array( 'employer' ) );

		if ( '' == $roles ) {
			return array();
		}

		if ( ! is_array( $roles ) ) {
			$roles = explode( ',', $roles );
		}

		$roles = array_map( 'trim', $roles );

		return $roles;
	}

	private function get_editable_roles() {
		global $wp_roles;

		$all_roles = $wp_roles->roles;
		$editable_roles = apply_filters( 'editable_roles', $all_roles );

		return $editable_roles;
	}

	public function get_registration_roles() {
		add_filter( 'editable_roles', array( $this, 'editable_roles' ) );

		$roles = $this->get_editable_roles();

		if ( empty( $roles ) ) {
			return array();
		}

		$value = array_keys( $roles );
		$labels = wp_list_pluck( $roles, 'name' );

		$options = array_combine( $value, $labels );

		remove_filter( 'editable_roles', array( $this, 'editable_roles' ) );

		return $options;
	}

	public function editable_roles( $roles ) {
		$remove = apply_filters( 'jobify_removed_roles', array( 'administrator', 'editor', 'author', 'contributor', 'shop_manager' ) );

		foreach ( $remove as $role ) {
			unset( $roles[ $role ] );
		}

		return $roles;
	}

	public function register_form() {
		$default = get_theme_mod( 'registration-default', array( 'employer' ) );
		$roles = $this->get_allowed_roles();
		$labels = $this->get_registration_roles();

		if ( empty( $roles ) ) {
			return;
		}

		if ( 1 == count( $roles ) ) {
			echo '<input type="hidden" value="' . esc_attr( $roles[0] ) . '" name="reg_role" />';
			return;
		}

		$options = array();

		foreach ( $roles as $value ) {
			// in case things get out of sync
			if ( ! isset( $labels[ $value ] ) ) {
				continue;
			}

			$label = apply_filters( 'jobify_registration_role_' . $value, $labels[ $value ] );
			$options[] = '<option value="' . $value . '"' . selected( $default, $value, false ) . '>' . esc_attr( $label ) . '</option>';
		}

		$options = implode( '', $options );
	?>
		<p class="form-row form-row-wide">
			<label for="reg_role"><?php _e( 'Register As', 'jobify' ); ?></label>
			<select name="reg_role" class="jobify-registration-role"><?php echo $options; ?></select>
		</p>
	<?php
	}

}

「$options」の値が取得できません。
作成したコード↓

<?php
add_action('nsl_before_register', function ($provider) {
    add_filter('nsl_registration_require_extra_input', function ($askExtraData) {
        return true;
    });

    /** You can use nsl_registration_form_start and nsl_registration_form_end action.  */
    add_action('nsl_registration_form_start', function ($data) {
        ?>
<?php
	function new_Register( $data ) {
		if ( ! isset( $_POST['reg_role'] ) ) {
			return $data;
		}

		$role = esc_attr( $_POST['reg_role'] );
		$whitelist = $this->get_registration_roles();

		if ( ! in_array( $role, array_keys( $whitelist ) ) ) {
			return $data;
		}

		$data['role'] = $role;

		return $data;

	}
	function get_allowed_roles() {
		$roles = get_theme_mod( 'registration-roles', array( 'employer' ) );

		if ( '' == $roles ) {
			return array();
		}

		if ( ! is_array( $roles ) ) {
			$roles = explode( ',', $roles );
		}

		$roles = array_map( 'trim', $roles );

		return $roles;
	}

	function get_editable1_roles() {
		global $wp_roles;

		$all_roles = $wp_roles->roles;
		$editable_roles = apply_filters( 'editable_roles', $all_roles );

		return $editable_roles;
	}

	function get_registration_roles() {
		add_filter( 'editable_roles', array( $this, 'editable_roles' ) );

		$roles = $this->get_editable1_roles();

		if ( empty( $roles ) ) {
			return array();
		}

		$value = array_keys( $roles );
		$labels = wp_list_pluck( $roles, 'name' );

		$options = array_combine( $value, $labels );

		remove_filter( 'editable_roles', array( $this, 'editable_roles' ) );

		return $options;
	}

	function editable_roles( $roles ) {
		$remove = apply_filters( 'jobify_removed_roles', array( 'administrator', 'editor', 'author', 'contributor', 'shop_manager' ) );

		foreach ( $remove as $role ) {
			unset( $roles[ $role ] );
		}

		return $roles;
	}
	function register_form() {
		$default = get_theme_mod( 'registration-default', array( 'employer' ) );
		$roles = $this->get_allowed_roles();
		$labels = $this->get_registration_roles();

		if ( empty( $roles ) ) {
			return;
		}

		if ( 1 == count( $roles ) ) {
			echo '<input type="hidden" value="' . esc_attr( $roles[0] ) . '" name="reg_role" />';
			return;
		}

		$options = array();

		foreach ( $roles as $value ) {
			// in case things get out of sync
			if ( ! isset( $labels[ $value ] ) ) {
				continue;
			}

			$label = apply_filters( 'jobify_registration_role_' . $value, $labels[ $value ] );
			$options[] = '<option value="' . $value . '"' . selected( $default, $value, false ) . '>' . esc_attr( $label ) . '</option>';
		}

		$options = implode( '', $options );var_dump($options);
}
?>
		<p class="form-row form-row-wide">
			<label for="reg_role"><?php _e( 'Register As', 'jobify' ); ?></label>
			<select name="reg_role" class="jobify-registration-role"><?php echo $options; ?></select>
		</p>

        <?php
    });

     add_action('nsl_registration_store_extra_input', function ($user_id, $data) {
        add_user_meta($user_id, 'reg_role', $data['role'] );
    }, 10, 2);
});

構文チェックは問題ないのですが、var_dump($options);としても何も表示されないので、function以降「role」の取得が出来ていないようです。
※取得後にどうやってユーザーロールを追加するのかという問題もありますが…

どなたかお力を貸して頂けないでしょうか？