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