php 工厂模式

<?php

interface Inter{
    public function show();

}

class Test1 implements Inter{
    public function show(){
        echo "test1";
    }
}

class Test2 implements Inter{
public function show(){
        echo "test2";
    }
}class transFactory{
    public static function factory($type)
    {
        
        switch ($type) {
            case 'test1':
                return new Test1();
                break;

            case 'test2':
                return new Test2();
                break;
        }
    }
}

$test=transFactory::factory('test1');
$test->show();

Inter