PHP - 简单学习过程1

最近需要使用PHP，所以我也只能把书拿出来看看，书是图灵的《PHP实战》，人民邮电出版的。

PHP中如何使用类

1: <?php

class Document{

protected $title;

private $text;

function __construct($title, $text) {

   6:             $this->title = $title;

   7:             $this->text = $text;

   8:         }

   9:     }

extends Document{

public $introduction;

function __construct($title, $text, $introduction) {

parent::__construct($title, $text);

  14:             $this->introduction = $introduction;

  15:         }

  16:     }

  17: ?>