<?php

header("Content-type: text/html; charset=utf-8");

date_default_timezone_set("PRC");

class Human

{

? ? public $name;

public $weight;

//受保護(hù)的類成員，只有自身和其子類可以訪問到

protected $height;

//也是受保護(hù)的成員，只能被自身訪問

? ? private $isHungry=true;

public function eat($food)

{

echo $this->name."'s eating ".$food."<br>";

}

}

class NbaPlayer extends Human

{

public $team='';

public $PlayNum='';

//受保護(hù)的類成員，只能別自身訪問到,當(dāng)public function getAge()自身定義了這個(gè)方法時(shí)，就可以被自身訪問到

private $age='50';

function __construct($name,$height,$weight,$team,$PlayNum)

{

echo"construct方法被調(diào)用<br>";

? ?$this->name=$name;

? ?$this->height=$height;

$this->weight=$weight;

$this->team=$team;

? ?$this->PlayNum=$PlayNum;

echo $this->isHungry."\n";

}

function __destruct()

{ echo"destruct方法被調(diào)用.$this->name.<br>";

}

? ?//定義方法[跟原來定義函數(shù)是一樣的]

public function run()

{

echo'Running<br>';

}

public function jump()

{

echo'Jumping<br>';

}

//受保護(hù)的類成員age可以被自身調(diào)用

public function getAge()

{

echo $this->name."'is age is ".($this->age)."\n";

}

}

$wang=new NbaPlayer("wang","160cm","50kg","Bull","56");

//echo $wang->getAge()."\n";

//echo $wang->height;//提示不能訪問

?>