復(fù)制代碼 代碼如下:

<?php
class Cart{
public function Cart(){
echo "正在調(diào)用Cart()<br />";
}
public function doSomething(){
echo "正在調(diào)用doSomethimg()<br />";
}
}
class Named_Cart extends Cart{
function Named_Cart(){
echo "正在調(diào)用Named_Cart()<br />";
}
function doSomething(){
echo "正在調(diào)用Named_Cart::doSomething()<br />";
}
}
$myCart=new Cart();
$myCart->doSomething();
$myNamed_Cart=new Named_Cart();
$myNamed_Cart->doSomething();
?>