<?php

class IndexAction {

    public function index() {

        echo 'index';

    }

    public function indexBefore() {

        echo 'indexBefore';

    }

    public function indexAfert() {

        echo 'indexAfert';

    }

    public function sayHello($name) {

        echo "{$name}helloword!";

    }

}

if (class_exists('IndexAction')) {

    $ReflectObj = new ReflectionClass('IndexAction');

    if (!$ReflectObj->hasMethod('index')) {

        throw new Exception('不存在index');

    }

    $ReflectIndex = $ReflectObj->getMethod('index');

    if (!$ReflectIndex->isPublic()) {

        throw new Exception('index不是共有方法');

    }

    if ($ReflectObj->hasMethod('indexBefore')) {

        $ReflectIndexBefore = $ReflectObj->getMethod('indexBefore');

        $ReflectIndexBefore->invoke($ReflectObj->newInstance());

    }

    if ($ReflectObj->hasMethod('sayHello')) {

        $ReflectSayHello = $ReflectObj->getMethod('sayHello');

        $ReflectSayHello->invoke($ReflectObj->newInstance(), '小明');

    }

    if ($ReflectObj->hasMethod('indexAfert')) {

        $ReflectindexAfert = $ReflectObj->getMethod('indexAfert');

        $ReflectindexAfert->invoke($ReflectObj->newInstance());

    }

}