parent

<?php 

class MyObject {

function myMethod() {

//标准功能

echo "Standard Functionality\n";

}

}

class MyOtherObject extends MyObject {

function myMethod() {

//添加一些新功能

echo "New Functionality\n";

//然后再调用MyObject中定义的原来的myMethod方法

parent::myMethod();

}

}

$obj = new MyotherObject();

$obj->myMethod(); //New Functionality Standard Functionality