<?php
class Base
{
public $name;
// 构造函数
public function Base($n)
{
$this->name = $n;
}
// function
public function sayHello()
{
echo 'Hi nice to meet you ' . $this->name;
}
}
class Child extends Base
{
public function sayHello()
{
echo 'Hi，this is my son say hello to you ';
}
}
$p = new Base('Allen');
$p->sayHello();
$c = new Child();
$c->sayHello();