Dynamically Add Filters in WP Admin list VIew

function dynamically_set_filter_in_admin_list_view($functionName, $taxonomyName, $postType) {
	// a quick check for the function name
	if(function_exists ( $functionName ) || array_key_exists($functionName, $GLOBALS)) {
		die('Function <i>' . $functionName . '</i> exists. Please name a different function name.');
		return false;
	}
	$GLOBALS[$functionName] = function() use ($taxonomyName, $postType){
	    global $typenow;
	    if( $typenow == $postType ){
			$tax_obj = get_taxonomy($taxonomyName);
			$tax_name = $tax_obj->labels->name;
			$terms = get_terms($taxonomyName);
			echo "<select name='" . $taxonomyName . "' id='" . $taxonomyName . "' class='postform'>";
			echo "<option value=''>Show All " . $tax_name . "</option>";
			if(!isset($_GET[$taxonomyName])) $_GET[$taxonomyName] = '';
			foreach ($terms as $term) { 
				echo '<option value='. $term->slug, $_GET[$taxonomyName] == $term->slug ? ' selected="selected"' : '','>' . $term->name .' (' . $term->count .')</option>';
			}
			echo "</select>";
		}
	};
	add_action( 'restrict_manage_posts', $GLOBALS[$functionName] );
}