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HomeBackend DevelopmentPHP Tutorial关于实列化与不实列化的区别?

function __construct() 这个初始化涵数有什什么实际上的作用呢?就是少一个负值语句吗?
初始化涵数了就可以这样传值:
$pc=new MyPC("这个是类哦,","真的是类哦-->");
没有初始化涵数就要这样传值吗?
$pc->name="你好,";//在类里面,初始化了(__construct)这里就可以不用附值

class MyPC{	public $name;	public $type;	function __construct($name="",$type=""){		$this->name=$name;		$this->type=$type;	} function vod(){		return $this->name.$this->type."测试数据";	}	function __destruct(){	}}$pc=new MyPC("这个是类哦,","真的是类哦-->");#$pc->name="你好,";//在类里面,初始化了(__construct)这里就可以不用附值echo $pc->vod();


回复讨论(解决方案)

__construct 构造函数
当类实例化的时候被调用,这样你就有可能在类实例化的时候干预php的动作


你思维混乱,基础都没搞懂。
__construct是帮你做一些初始工作,比如常用的有对象属性赋值,如连接好数据库

初始化涵数了就可以这样传值:
$pc=new MyPC("这个是类哦,","真的是类哦-->");
你这个写法是个递归了,一个对象初始的时候就对象化本身,同时又触发构造函数,再对象化,不停的循环。同时没有什么意义。

类内部一般是实例其他类,自己类不实例化,如果需要使用对象,应该是$this

谢谢各位的回答,有点懂,但不是很明白,我是刚开始学PHP的,有没有更通俗一点,这样会更好理解

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