PHP 面向接口编程示例

1、定义一个接口！示例如下：//定义接口interface PersonInterface{ public function say($name); public function walk($name,$parm);}

2、WoMen类实现此接口；//女人class WoMen implements PersonInterface撑俯擂摔{ public function say($name){ echo "My name is <span style=\"color:red;\">{$name}</span>.and I am a woman!!"; } public function walk($name,$parm){ echo "{$name} walk {$parm} meters away."; } }

3、Man类实现此接口：//男人class Man implements PersonInterface{ pu芟鲠阻缒blic function say($name){ echo "My name is <span style=\"color:red;\">{$name}</span>.and I am a man!!"; } public function walk($name,$parm){ echo "{$name} walk {$parm} meters away."; }}

4、工厂模式，封装：//工厂模式class PerFact{ private static $per=array(); public stat足毂忍珩ic function getInstance($type){ switch($type){ case 'woman': self::$per[$type]= new WoMen(); break; case 'man': self::$per[$type]= new Man(); break; default: throw new Exception("类型不能为空"); } return self::$per[$type]; }}

5、测试：//type类型$type='man';//名字$name='Tom';//获取实例对象$person= PerFact::getInstance($type);//调用方法$person->say($name);

6、运行结果：