PHP类中函数与变量作用域的问题
//代码1
class Cart
{
var $owner;
function set_owner($name)
{
$this->owner=$name;
}
}
?>
//代码2
$acart=new Cart;
$acart->set_owner("john");
print $acart->owner;
?>
代码1中函数set_owner()中的$this->owner一旦被代码2赋值,代码1中类的变量$owner是同时也被赋值了吗?如果是,函数中的变量范围不是仅限于函数中吗?如果不是,代码2中的print $acart->owner又意味着什么?
------解决方案--------------------
你先google哈 类、类实例化、继承等等概念吧
------解决方案--------------------
set_owner 方法中的 $this->owner = $name; 就是给类属性 owner 赋值的
不错,函数中的变量范围是仅限于函数中。但在这里不是冠以作用域 $this 了吗
正因为如此,同样是 function ,在类中被译做方法
------解决方案--------------------
可以这么理解

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