[李景山php]每天laravel-20160903|Dispatcher-3

    /**     * Setup a wildcard listener callback.     *     * @param  string  $event     * @param  mixed  $listener     * @return void     */    protected function setupWildcardListen($event, $listener)    {        $this->wildcards[$event][] = $this->makeListener($listener);    }// this is a wildcard be you life !    // this means is very good, setup the wildcard listener use the events as the key,    // and use this function make Listener to wrap this listener    /**     * Determine if a given event has listeners.     *     * @param  string  $eventName     * @return bool     */    public function hasListeners($eventName)    {        return isset($this->listeners[$eventName]) || isset($this->wildcards[$eventName]);    }// Determine if a given event has listeners    // check it is has listeners ,means to check it has listener or has wildcards    /**     * Register an event and payload to be fired later.     *     * @param  string  $event     * @param  array  $payload     * @return void     */    public function push($event, $payload = [])// register like push,not like pop    {        $this->listen($event.'_pushed', function () use ($event, $payload) {            $this->fire($event, $payload);        });// set the event ,use function listen and fire    }// load is loading.... pay  buy something for this    // goods carried by a large vehicle    // a large vehicle has the big goods carried    /**     * Register an event subscriber with the dispatcher.     *     * @param  object|string  $subscriber     * @return void     */    public function subscribe($subscriber)    {// function name is subscribe        $subscriber = $this->resolveSubscriber($subscriber);// get the resolve        $subscriber->subscribe($this);// too much    }// register a use about this event in the dispatcher rule.