add_action( 'widgets_init', 'photogram_widgets_init' );
function photogram_widgets_init() {
	register_sidebar( array (
		'name'          => __( 'Left sidebar', 'photogram' ),
		'id'            => 'left-sidebar',
		'description'   => __( 'Widgets dragged here will appear in the left sidebar.', 'photogram' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h5 class="widget-title"><span>',
		'after_title'   => '</span></h5>'
	) );