Widget Title URL

gistfile1.txt

// We will make use of widget_title filter to 
//dynamically replace custom tags with html tags

add_filter( 'widget_title', 'accept_html_widget_title' );

function accept_html_widget_title( $mytitle ) { 

  // The sequence of String Replacement is important!!
  
	$mytitle = str_replace( '[link', '<a', $mytitle );
	$mytitle = str_replace( '[/link]', '</a>', $mytitle );
    $mytitle = str_replace( ']', '>', $mytitle );
	

	return $mytitle;
}