The following code allows shortcode parsing for 'text' widget:

add_filter('widget_text', 'do_shortcode');

How to make a similar one for a custom widget?

I tried the following one but it didn't work:

add_filter('widget_CUSTOM_WIDGET_NAME', 'do_shortcode');

You can try the following:

 * Only allow shortcodes for a widget with a given title.
 * @see http://wordpress.stackexchange.com/a/160246/26350

function wpse_widget_shortcode( $text, $instance )
        // Only allow shortcodes for the widget with the following title:
        $title = 'Some Title'; 

        remove_filter( current_filter(), __FUNCTION__ );

        if( isset( $instance['title'] ) 
            && mb_strtolower( $title ) === $instance['title'] 
            $text = do_shortcode( $text );

        return $text;

add_filter( 'widget_text', 'wpse_widget_shortcode', 99, 2 );

where we target the given widget by it's title.

| improve this answer | |
  • 1
    Thanks for the 'do_shortcode( $text );'! That was the key! – Ahmed Saad Sep 5 '14 at 4:58

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