Wordpress dynamic sidebar without title

Widget always have a filter applied on title name 'widget_title', use that.

add_filter('widget_title','my_widget_title'); 
function my_widget_title($t)
{

    return null;
}

Thanks

-Shak

You can try this (in functions.php within register_sidebar)

'before_title' => '<span class="hidden">',
'after_title' => '</span>',

And Css

.hidden{display:none;}

You can also try this.

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