例一:
複製代碼 代碼如下:
// 類的定義
class User
{
// 屬性,注意public、private、protected的作用範圍
public $name = "hackbaby";
// 建構函式
function __construct()
{
echo "construct
";
}
// 方法
function say()
{
echo "這是在類的本身調用:$this->name";
}
// 解構函式
function __destruct()
{
echo "destruct";
}
// 返回當前對象的描述資訊 通過執行個體化的變數名調用例如本例中的$user
function __toString()
{
return "user class";
}
}
//執行個體化,如果建構函式有參數則用$user = new User('參數');
$user = new User();
echo $user->name . "
";
$user->say();
echo "";
echo $user;
?>
例二:
複製代碼 代碼如下:
class Fruit
{
protected $fruit_color;
protected $fruit_size;
function setcolor($color)
{
$this->fruit_color = $color;
}
function getcolor()
{
return $this->fruit_color;
}
function setsize($size)
{
$this->fruit_size = $size;
}
function getsize()
{
return $this->fruit_size;
}
function save()
{
//代碼
}
}
class apple extends Fruit
{
private $variety;
function setvariety($type)
{
$this->variety = $type;
}
function getvariety()
{
return $this->variety;
}
}
$apple = new apple();
echo $apple->setvariety('紅富士');
echo $apple->getvariety();
echo "
";
echo $apple->setcolor('red');
echo $apple->getcolor();
echo "
";
echo $apple->setsize('特大');
echo $apple->getsize();
?>
以上就介紹了物件導向的特徵 PHP 進階課程筆記 物件導向,包括了物件導向的特徵方面的內容,希望對PHP教程有興趣的朋友有所協助。