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php工廠模式簡(jiǎn)單使用說(shuō)明

Mar 18, 2017 pm 02:38 PM

本文章來(lái)給大家介紹php入門教程之工廠模式哦,工廠模式概念:實(shí)例化對(duì)象,用工廠方法替代new操作,有需要了解學(xué)習(xí)的朋友可參考.

工廠模式實(shí)例代碼:

<?php
//首先定義什么是人類  
interface Human { 
   //人是愉快的,會(huì)笑的  
   public function laugh();  
   //人類還會(huì)哭,代表痛苦  
   public function cry(); 
   //人類會(huì)說(shuō)話  
   public function talk();  
} 
//然后定義具體的人種 
class YellowHuman implements Human {//黃色人種,這個(gè)翻譯的不準(zhǔn)確,將就點(diǎn)吧  
   function cry() { var_dump( "黃色人種會(huì)哭");} 
   function laugh() {var_dump( "黃色人種會(huì)大笑,幸福呀!");} 
   function talk() {var_dump( "黃色人種會(huì)說(shuō)話,一般說(shuō)的都是雙字節(jié)"); } 
} 
class WhiteHuman implements Human { //白色人種 
   public function cry() {var_dump("白色人種會(huì)哭");}  
   public function laugh() {var_dump("白色人種會(huì)大笑,侵略的笑聲"); }  
   public function talk() {var_dump("白色人種會(huì)說(shuō)話,一般都是但是單字節(jié)!"); }  
} 
class BlackHuman implements Human { //黑色人種 
   public function cry() {var_dump("黑色人種會(huì)哭");}  
   public function laugh() {var_dump("黑色人種會(huì)大笑,侵略的笑聲"); }  
   public function talk() {var_dump("黑色人種會(huì)說(shuō)話,一般都是但是單字節(jié)!"); }  
} 
//人種也定義完畢了,那我們把八卦爐定義出來(lái): 
class HumanFactory { 
   //定一個(gè)烤箱,泥巴塞進(jìn)去,人就出來(lái),這個(gè)太先進(jìn)了  
   public static function createHuman( $c ){  
       if ($c instanceof Human ) {//判斷是否繼承自Human 
           return $c;  
       }else { 
           var_dump("必須跟HuMan有一腿");  
       } 
   }  
} 

var_dump("------------造出的第一批人是這樣的:白人-----------------");  
$whiteHuman = HumanFactory::createHuman( new WhiteHuman());  
$whiteHuman->cry();  
$whiteHuman->laugh();  
$whiteHuman->talk();  
     
//女?huà)z第二次造人,火候加足點(diǎn),然后又出了個(gè)次品,黑人  
var_dump("nn------------造出的第二批人是這樣的:黑人-----------------");  
$blackHuman = HumanFactory::createHuman(new BlackHuman());  
$blackHuman->cry();  
$blackHuman->laugh();  
$blackHuman->talk();  
     
//第三批人了,這次火候掌握的正好,黃色人種(不寫黃人,免得引起歧義),備注:RB人不屬于此列  
var_dump("nn------------造出的第三批人是這樣的:黃色人種-----------------");  
$yellowHuman = HumanFactory::createHuman(new YellowHuman());  
$yellowHuman->cry();  
$yellowHuman->laugh();  
$yellowHuman->talk(); 
?>

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