深入分析php中接口与抽象类的区别

复制代码 代码如下:

<?php
interface IAnimal{
public function run();
public function speak();
}
class Animal implements IAnimal{
public function run(){
//在这里可以添加一些相同的run逻辑
return "same run<br />";
}
public function speak(){
//这里可以添加一些相同的speak逻辑
return "same speak<br />";
}
}
class Dog extends Animal{
public function speak(){
//在这里可以添加一些Dog逻辑
return "Dog speak<br />";
}
}
class Cattle extends Animal{
public function speak(){
//在这里可以添加一些Cattle逻辑
return "Cattle speak<br />";
}
}
$oDog=new Dog();
echo($oDog->run());
echo($oDog->speak());
$oCattle=new Cattle();
echo($oCattle->run());
echo($oCattle->speak());
?>