依賴注入簡單代碼

<?php
interface SuperModuleInterface{
    public function activate();
}


class Play implements SuperModuleInterface {

     protected $game;

    public function __construct($game='') {
        $this->game = $game;
    }

    public function activate(){
        echo $this->game;
    }
}




class Container{

    protected $binds;
    protected $instances;

    public function bind($abstract,$concrete){
        if($concrete instanceof Closure){
            $this->binds[$abstract]=$concrete;
        }else{
            $this->instances[$abstract]=$concrete;
        }
    }

    public function make($abstract,$parmeters=[]){
        if(isset($this->instances[$abstract])){
            return $this->instances[$abstract];
        }

        array_unshift($parmeters,$this);

        #調(diào)用回調(diào)函數(shù),并把自身作為第一個參數(shù)傳入
        return call_user_func_array($this->binds[$abstract],$parmeters);

    }

}

class Superman{

    protected $power;

    public function __construct(SuperModuleInterface $module) {
        $this->power=$module;
    }


    public function attack(){
        $powers=is_array($this->power)?$this->power:array($this->power);

        foreach($powers as $p){

             $p->activate();
        }
    }
}

$container=new Container();
$container->bind('Play',function($container,$game){
    return new Play($game);
});
$container->bind('Superman',function($container,$moduleName,...$arg){

    return new Superman($container->make($moduleName,$arg));
});
$superman_1=$container->make('Superman',['Play','戰(zhàn)神']);
$superman_1->attack();

最后編輯于
?著作權(quán)歸作者所有,轉(zhuǎn)載或內(nèi)容合作請聯(lián)系作者
【社區(qū)內(nèi)容提示】社區(qū)部分內(nèi)容疑似由AI輔助生成,瀏覽時請結(jié)合常識與多方信息審慎甄別。
平臺聲明:文章內(nèi)容(如有圖片或視頻亦包括在內(nèi))由作者上傳并發(fā)布,文章內(nèi)容僅代表作者本人觀點,簡書系信息發(fā)布平臺,僅提供信息存儲服務(wù)。

友情鏈接更多精彩內(nèi)容