模板方法模式

在父类中定义处理流程的框架，在子类中实现具体处理。

类图

2024061015425445.png

代码示例

<?php
 
abstract class AbstructClass
{
    abstract public function step1();
    abstract public function step2();
    abstract public function step3();
    final public function initStep()
    {
        echo "initStep\n";
    }
    final public function endStep()
    {
        echo "endStep\n";
    }
    public function afterEndStep()
    {
        echo "afterEndStep\n";
    }
    final public function templateMethod()
    {
        $this->initStep();
        $this->step1();
        $this->step2();
        $this->step3();
        $this->endStep();
    }
}
 
class A extends AbstructClass
{
    public function step1()
    {
        echo "A::step1\n";
    }
    public function step2()
    {
        echo "A::step2\n";
    }
    public function step3()
    {
        echo "A::step3\n";
    }
    public function afterEndStep()
    {
        echo "A::afterEndStep\n";
    }
}
 
class B extends AbstructClass
{
    public function step1()
    {
        echo "B::step1\n";
    }
    public function step2()
    {
        echo "B::step2\n";
    }
    public function step3()
    {
        echo "B::step3\n";
    }
    public function afterEndStep()
    {
        echo "B::afterEndStep\n";
    }
}
 
function client(AbstructClass $obj)
{
    //
}
 
 
$a = new A();
$b = new B();
 
client($a);
client($b);