Draft 'Add Method' PHP Trait

<?php

trait TEnhance {
    //Array to hold new method Closures
    protected static $added_methods = [];

    //Adds a new method to the class
    public static function add_method($name, $closure) {
        static::$added_methods[get_called_class()][$name] = $closure;
    }

    //Looks through the inheritance hierachy for an added method with
    //the given name, returning the Closure if found, throwing if not
    protected static function find_method($name) {
        $class = get_called_class();
        if(
            array_key_exists($class, static::$added_methods) &&
            array_key_exists($name, static::$added_methods[$class])
        ) return static::$added_methods[$class][$name];
        $parent = get_parent_class($class);
        if(!$parent) throw new Exception('No such method =(');
        return $parent::find_method($name);
    }

    //
    public function __call($name, $args) {
        return call_user_func_array(
            static::find_method($name)->bindTo($this, $this),
            $args
        );
    }
}

?>