Returner helper class

example.php

add_filter('the_title', Returner::v("Test"));

Returner.php

class Returner {
	private static $returned = array();
	private $value;
	public function __construct( $value ) {
		$this->value = $value;
	}
	public function result( $arg ) {
		return $this->value;
	}
	public static function v( $value ) {
		if ( isset( Returner::$returned[$value] ) ) {
			return Returner::$returned[$value];
		}
		$sc = new Returner( $value );
		$returnCallable = array( $sc, 'result' );
		Returner::$returned[$value] = $returnCallable;
		return $returnCallable;
	}
}