命令模式 - 设计模式 - PHP版

 1 <?php 2 /* 3 ?* 命令模式 4 ?* ?5 ?*/ 6 //声明执行操作的接口(Command接口) 7 interface Cook { 8 ????public function excute(); 9 }10 //做米饭（ConcreteCommand）11 class CookRice implements Cook {12 ????private $cooker;13 ????function __construct(Cooker $cooker) {14 ????????$this->cooker = $cooker;15 ????}16 ????public function excute() {17 ????????$this->cooker->doRice();18 ????}19 }20 //做菜（ConcreteCommand）21 class CookFood implements Cook {22 ????private $cooker;23 ????function __construct(Cooker $cooker) {24 ????????$this->cooker = $cooker;25 ????}26 ????public function excute() {27 ????????$this->cooker->doFood();28 ????}29 }30 //服务员(Invoker)(通过List方式，可以进一步优化，这里略)31 class ServerPerson {32 ????private $cook;33 ????public function setCook(Cook $cook) {34 ????????$this->cook = $cook;35 ????}36 ????public function ExecuteCommand() {37 ????????$this->cook->excute();38 ????}39 }40 //厨师（Receiver）41 class Cooker {42 ????public function doRice() {43 ????????echo ‘做饭‘;44 ????}45 ????public function doFood() {46 ????????echo ‘做菜‘;47 ????}48 }49 //客户端50 class Client {51 ????public static function main() {52 ????????$cooker = new Cooker();53 ????????$server = new ServerPerson();54 ????????//做饭55 ????????$cookA = new CookRice($cooker);56 ????????$server->setCook($cookA);57 ????????$server->ExecuteCommand();58 ????????//做菜59 ????????$cookB = new CookFood($cooker);60 ????????$server->setCook($cookB);61 ????????$server->ExecuteCommand();62 ????}63 }64 Client::main();