php工厂方法模式,php工厂方法模式，抽象工厂模式和原型模式对比

php面向对象的开发过程中&＃xff0c;不仅仅是把共同的方法抽象成类&＃xff0c;还要对生成对象的策略有所了解

工厂方法模式&＃xff1a;一层层继承类&＃xff0c;达到最终实现所有方法的目的

抽象工厂模式&＃xff1a;最大化的把客类实现抽象化

原型模式&＃xff1a;通过克隆的方法获取对象

说的很抽象&＃xff0c;用代码说明吧&＃xff0c;大家细细品味&＃xff0c;欢迎大家指正

工厂方法模式&＃xff1a;

//工厂方法模式

abstract class appEncoder{

abstract function encode();

}

class BlogAppEncoder extends appEncoder{

function encode(){

return "encode in Blog format\n";

}

}

class MegaAppEncoder extends appEncoder{

function encode(){

return "encode in Blog format\n";

}

}

abstract class CommsManager{

abstract function getHeader();

abstract function getAppEncoder();

abstract function getFooter();

}

class BlogCommsManager extends CommsManager{

function getHeader(){

return "BloggsCal header\n";

}

function getAppEncoder()

{

return new BlogAppEncoder();

}

function getFooter(){

return "Bloggscal footer\n";

}

}

class MegaCommsManager extends CommsManager{

function getHeader(){

return "MegaCal header\n";

}

function getAppEncoder()

{

return new MegaAppEncoder();

}

function getFooter(){

return "Megacal footer\n";

}

}

抽象工厂模式

abstract class CommsManager{

const APP &＃61; 1;

const TTD &＃61; 2;

const CONTRACT &＃61; 3;

abstract function getHeader();

abstract function make($flag_in);

abstract function getFooter();

}

class BlogCommsManager extends CommsManager{

function getHeader(){

return "blog header\n";

}

function make($flag_in){

switch($flag_in)

{

case self::APP:

return new BlogAppEncoder();

case self::TTD:

return new BlogTtdEncoder();

case self::CONTRACT:

return new BlogConEncoder();

}

return new BlogAppEncoder();

}

function getFooter(){

return "blog footer\n";

}

}

原型模式

//原型模式

class Sea{};

class EarthSea extends Sea{};

class MarSea extends Sea{};

class Plains{};

class EarthPlains extends Plains{};

class MarPlains extends Plains{};

class Foreast{};

class EarthForeast extends Foreast{};

class MarForeast extends Foreast{};

class TerrainFactory{

Private $sea;

Private $plains;

Private $Foreast;

function __construct(Sea $sea,Plains $plains, Foreast $foreast){

$this->sea &＃61; $sea;

$this->plains &＃61; $plains;

$this->foreast &＃61; $foreast;

}

function getSea()

{

return clone $this->sea;

}

function getPlains(){

return clone $this->plains;

}

function getForeast(){

return clone $this->foreast;

}

}

$factory &＃61; new TerrainFactory(new EarthSea(), new EarthPlains(), new EarthForeast());

print_r($factory->getSea());

print_r($factory->getPlains());

print_r($factory->getForeast());