PHP单例模式的继承

基类：本例在TP5框架下实现

<?php
/**
 * User: epsds@qq.com
 * Date: 2018/5/30
 * Time: 18:38
 */
namespace app\admin\logic;

use think\Controller;
abstract class Base extends Controller {

    private static $_logic = array();

    public static function logic($className) {

        if (isset(self::$_logic[$className])) {

            return self::$_logic[$className];

        } else {

            self::$_logic[$className] = new $className(null);
            return self::$_logic[$className];

        }

    }

}

子类：

<?php
/**
 * User: epsds@qq.com
 * Date: 2018/5/30
 * Time: 17:47
 */
namespace app\admin\logic;

class Lloginlogs extends Base {

    static function logic($className = __CLASS__) {

        return parent::logic($className);

    }

    function getLogs($batch = false) {

        halt('getLogs');

    }

}

应用：

Lloginlogs::logic()->getLogs();