PHP装饰器模式 PHP简单装饰器模式实现与用法示例
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本文实例讲述了PHP简单装饰器模式实现与用法。分享给大家供大家参考,具体如下:
<?php //装饰器模式-在不改变原有类的结构上,对类的功能那个作补充 //武器基类 abstract class Weapon{ abstract public function descriptions(); abstract public function cost(); } //剑类 class Glave extends Weapon{ public function descriptions(){ return 'Glave'; } public function cost(){ return "100"; } } //匕首类 class Knife extends Weapon{ public function descriptions(){ return __CLASS__; } public function cost(){ return "80"; } } //斧类 class Axe extends Weapon{ public function descriptions(){ return __CLASS__; } public function cost(){ return "200"; } } //属性类 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; } } //力量属性 class Strength extends Property{ protected $_price = 30; protected $_descriptions = '+ Strength'; } //敏捷属性 class Agility extends Property{ protected $_price = 50; protected $_descriptions = '+ Agility'; } //智力属性 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();
希望本文所述对大家PHP程序设计有所帮助。
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