侧栏是按注册顺序输出的，通过将侧栏添加到$wp_registered_sidebars 全球的

这很容易操作，例如以下代码将移动first 边栏至开头：

add_action( \'register_sidebar\', function ( $sidebar ) {

    global $wp_registered_sidebars;

    if ( \'first\' === $sidebar[\'id\'] ) {
        $sidebar = $wp_registered_sidebars[\'first\'];
        unset( $wp_registered_sidebars[\'first\'] );
        $wp_registered_sidebars = [ \'first\' => $sidebar ] + $wp_registered_sidebars;
    }
} );

register_sidebar( [ \'name\' => \'one\', \'id\' => \'one\' ] );
register_sidebar( [ \'name\' => \'two\', \'id\' => \'two\' ] );
register_sidebar( [ \'name\' => \'first\', \'id\' => \'first\' ] );