[Wordpress] allow HTML tags in widget titles

allow-html-in-widget-title.php

<?php
// allow HTML tags in widget title 
	function html_widget_title( $var) {
		$var = (str_replace( '[', '<', $var ));
		$var = (str_replace( ']', '>', $var ));
		return $var ;
		
	}
	add_filter( 'widget_title', 'html_widget_title' );

// Usage :
// Use shortcode like pseudo code
// just replace < & > with [ and ]
// if css classes should be added to HTML tag, write them quotes 
//
// example: 
// Title with [span class=my_class_without_quote]span Tag[/span]
//
// result:
// Title with <span class="my_class_without_quote">span Tag</span>