裝飾器模式
<?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();
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