PHP 工厂模式浅析

//抽象出一个人的接口
interface Person{
 ???public function showInfo();
}
//继承于人的学生类
class Student implements Person{
 ???public function showInfo()
 ???{
 ???????// TODO: Implement showInfo() method.
 ???????echo "我是一个学生";
 ???}
}

//继承于人的教师类

class Teacher implements Person{
 ???public function showInfo()
 ???{
 ???????// TODO: Implement showInfo() method.
 ???????echo "我是一个老师";
 ???}
}
//人类工厂
class PersonFactory{
 ???public static function factory($person_type){
　　　　//传进来的人的类型，首字母大写
 ???????$class_name = ucfirst($person_type);
 ???????if (class_exists($class_name)){
 ???????????return new $class_name;
 ???????}else{
 ???????????throw new Exception("类：".$class_name."不存在");
 ???????}
 ???}
}
//学生类的实例化
$student = PersonFactory::factory(‘student‘);
$student->showInfo();

PHP 工厂模式浅析

原文地址：https://www.cnblogs.com/kgtest/p/8963699.html