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PHP构造方法问题

Jun 06, 2016 pm 08:39 PM
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初学PHP构造方法,有这样一个简单的构造方法问题,请教如下:

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<code>class Name{

    //成员属性

    public $name;

    //构造方法

    public function __construct($name = 'php'){

        $this-&gt;name = $name;

    }

}

</code>

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请解释一下:$this->name = $name; 这句怎么理解,是将$name的收到或者初始化的值赋给本类中的$name吗?还是怎么理解,非常感谢。

回复内容:

初学PHP构造方法,有这样一个简单的构造方法问题,请教如下:

1

2

3

4

5

6

7

8

9

<code>class Name{

    //成员属性

    public $name;

    //构造方法

    public function __construct($name = 'php'){

        $this-&gt;name = $name;

    }

}

</code>

Copy after login
Copy after login

请解释一下:$this->name = $name; 这句怎么理解,是将$name的收到或者初始化的值赋给本类中的$name吗?还是怎么理解,非常感谢。

是,Name::$name是类属性,实例出来的话就是对象属性。

new Name('php') 会创建一个 Name 的对象(或者叫做实例),将这个对象的 name 属性设置为 'php'

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