php设计模式 command (命令模式)

25种php设计模式，你全都知道吗？下面用代码介绍命令模式(command模式)

_command[] = $command;
    }
    public function executeCommand() {
        foreach ($this->_command as $command) {
            $command->execute();
        }
    }
    public function removeCommand($command) {
        $key = array_search($command, $this->_command);
        if ($key !== false) {
            unset($this->_command[$key]);
        }
    }
}
class Receiver {
    private $_name = null;
    public function __construct($name) {
        $this->_name = $name;
    }
    public function action() {
        echo $this->_name . " action
";
    }
    public function action1() {
        echo $this->_name . " action1
";
    }
}
class ConcreteCommand implements Command {
    private $_receiver;
    public function __construct($receiver) {
        $this->_receiver = $receiver;
    }
    public function execute() {
        $this->_receiver->action();
    }
}
class ConcreteCommand1 implements Command {
    private $_receiver;
    public function __construct($receiver) {
        $this->_receiver = $receiver;
    }
    public function execute() {
        $this->_receiver->action1();
    }
}
class ConcreteCommand2 implements Command {
    private $_receiver;
    public function __construct($receiver) {
        $this->_receiver = $receiver;
    }
    public function execute() {
        $this->_receiver->action();
        $this->_receiver->action1();
    }
}
$objRecevier = new Receiver("No.1");
$objRecevier1 = new Receiver("No.2");
$objRecevier2 = new Receiver("No.3");
$objCommand = new ConcreteCommand($objRecevier);
$objCommand1 = new ConcreteCommand1($objRecevier);
$objCommand2 = new ConcreteCommand($objRecevier1);
$objCommand3 = new ConcreteCommand1($objRecevier1);
$objCommand4 = new ConcreteCommand2($objRecevier2); // 使用 Recevier的两个方法
$objInvoker = new Invoker();
$objInvoker->setCommand($objCommand);
$objInvoker->setCommand($objCommand1);
$objInvoker->executeCommand();
$objInvoker->removeCommand($objCommand1);
$objInvoker->executeCommand();
$objInvoker->setCommand($objCommand2);
$objInvoker->setCommand($objCommand3);
$objInvoker->setCommand($objCommand4);
$objInvoker->executeCommand();

其他相关设计模式：

http://www.phprm.com/develop/memento.html 备忘录模式(Memento模式)
http://www.phprm.com/develop/observer.html 观察者模式(Observer模式)
http://www.phprm.com/develop/template.html 模板方法模式(Template Method模式)
http://www.phprm.com/develop/command.html 命令模式(command模式)
http://www.phprm.com/develop/composite.html 组合模式(composite模式)
http://www.phprm.com/develop/flyweight.html 享元模式(flyweight模式)
http://www.phprm.com/develop/strategy.html 策略模式(strategy模式)
http://www.phprm.com/develop/state.html 状态模式(state模式)
http://www.phprm.com/develop/adapter.html 适配器模式(adapter模式)
http://www.phprm.com/develop/factory.html 工厂模式(factory模式)
http://www.phprm.com/develop/prototype.html 原型模式(prototype模式)
http://www.phprm.com/develop/facade.html 外观模式(facade模式)
http://www.phprm.com/develop/singleton.html 单例模式(singleton模式)
http://www.phprm.com/develop/bridge.html 桥梁模式(bridge模式)
http://www.phprm.com/develop/decorator.html 装饰模式(decorator模式)
http://www.phprm.com/develop/abstract.html 抽象工厂模式(abstract factory模式)
http://www.phprm.com/develop/builder.html 建造者模式(Builder模式)
http://www.phprm.com/develop/visitor.html 访问者模式(Visitor模式)
http://www.phprm.com/develop/interpreter.html 解释器模式(Interpreter模式)
http://www.phprm.com/develop/mediator.html 中介者模式(Mediator模式)
http://www.phprm.com/develop/chain.html 职责链模式(Chain Of Responsibility模式)
http://www.phprm.com/develop/proxy.html 代理模式(Proxy模式)
http://www.phprm.com/develop/interator.html 迭代器模式(Interator模式)
http://www.phprm.com/develop/dao.html 数据访问对象模式(DAO模式)
http://www.phprm.com/develop/delegation.html 委托模式(Delegation模式)

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