行为型--模板方法模式

设计模式

• 抽象类
• 具体类

抽象类

<?php
/**
 * AbstractClass.php
 *
 * @author     Luffy <lufei@swoole.com>
 * @date       2019/12/24
 * @copyright  Swoole, Inc.
 * @package    sy-records/design-patterns
 */
namespace Luffy\DesignPatterns\TemplateMethod;
abstract class AbstractClass
{
    final public function templateMethod()
    {
        $this->open();
        $this->startPlay();
        $this->endPlay();
    }
    protected function open()
    {
        echo "open game\n";
    }
    abstract protected function startPlay();
    protected function endPlay()
    {
        echo "end game\n";
    }
}

具体类

<?php
/**
 * ConcreteClass1.php
 *
 * @author     Luffy <lufei@swoole.com>
 * @date       2019/12/24
 * @copyright  Swoole, Inc.
 * @package    sy-records/design-patterns
 */
namespace Luffy\DesignPatterns\TemplateMethod;
class ConcreteClass1 extends AbstractClass
{
    protected function startPlay()
    {
        echo "start play CF\n";
    }
}

<?php
/**
 * ConcreteClass2.php
 *
 * @author     Luffy <lufei@swoole.com>
 * @date       2019/12/24
 * @copyright  Swoole, Inc.
 * @package    sy-records/design-patterns
 */
namespace Luffy\DesignPatterns\TemplateMethod;
class ConcreteClass2 extends AbstractClass
{
    protected function startPlay()
    {
        echo "start play LOL\n";
    }
}

客户端调用

<?php
/**
 * Client.php
 *
 * @author     Luffy <lufei@swoole.com>
 * @date       2019/12/24
 * @copyright  Swoole, Inc.
 * @package    sy-records/design-patterns
 */
namespace Luffy\DesignPatterns\TemplateMethod;
require __DIR__ . "/../vendor/autoload.php";
class Client
{
    public static function run()
    {
        $obj1 = new ConcreteClass1();
        $obj1->templateMethod();
        echo "===========\n";
        $obj2 = new ConcreteClass2();
        $obj2->templateMethod();
    }
}
Client::run();

参考资料:
swoole微课堂
示例代码