PHP簡單裝飾器模式實現代碼

本文主要和大家介紹了PHP簡單裝飾器模式實現與用法,結合具體執行個體形式分析了php裝飾器模式的原理、實現與使用方法,需要的朋友可以參考下，希望能協助到大家。

<?php//裝飾器模式-在不改變原有類的結構上，對類的功能那個作補充//武器基類abstract class Weapon{  abstract public function descriptions();  abstract public function cost();}//劍類class Glave extends Weapon{  public function descriptions(){    return 'Glave';  }  public function cost(){    return "100";  }}//匕首類class Knife extends Weapon{  public function descriptions(){    return __CLASS__;  }  public function cost(){    return "80";  }}//斧類class Axe extends Weapon{  public function descriptions(){    return __CLASS__;  }  public function cost(){    return "200";  }}//屬性類class Property extends Weapon{  protected $_weapon = null;  protected $_price = 0;  protected $_descriptions = '';  public function __construct(Weapon $weapon){    $this->_weapon = $weapon;  }  public function cost(){    return   $this->_weapon->cost() + $this->_price;  }  public function descriptions(){    return $this->_weapon->descriptions().$this->_descriptions;  }}//力量屬性class Strength extends Property{  protected $_price = 30;  protected $_descriptions = '+ Strength';}//敏捷屬性class Agility extends Property{  protected $_price = 50;  protected $_descriptions = '+ Agility';}//智力屬性class Intellect extends Property{  protected $_price = 20;  protected $_descriptions = '+ Intellect';}$weapon = new Agility(new Strength(new Strength(new Glave())));echo $weapon->cost();echo $weapon->descriptions();