뒤힛쌘 땍屢寧몸잚 [3]

　　
뎠콱?荷桶뻗痔?콱矜狼죗놔뚤蹶壇唐돨杰唐긴좆뵨杰唐변鑒―굳냔槨橄昑뵨렘랬. 3.1.1櫓鞫刻죄寧몸잚돨뭐냥. 鬧雷瞳댕윅뵀({})코콱怜콘?荷貪幄옐畛揷鑒. 3.1.2櫓鞫刻죄흔부瞳寧몸잚櫓땍屢힛몸橄昑뵨좃몸렘랬.

3.1.1
class Name extends Another Class
{
Access Variable Declaration
Access Function Declaration
} 3.1.2 <?php
//땍屢寧몸뫄吏痰빵돨잚
class User
{
//橄昑
public $name;
private $password, $lastLogin;

//렘랬
public function __construct($name, $password)
{
$this->name = $name;
$this->password = $password;
$this->lastLogin = time();
$this->accesses++;
}

// 삿혤離빈련狂돨珂쇌
function getLastLogin()
{
return(date(M d Y, $this->lastLogin));
}
}

//눼쉔寧몸뚤蹶돨茄절
$user = new User(Leon, sdf123);

//삿혤離빈련狂돨珂쇌
print($user->getLastLogin() .<br>n);

//댔丹痰빵츰
print($user->name<br>n);
?> 뎠콱?荷澤轍?콱꼇矜狼寧츠鑒앴잚謹. 긴좆옵콘角憐謹,俚륜눔샀諒角쥼寧몸뚤蹶,侶혤엄黨茄셥헙워.瞳?荷澤轍豚규梔當▧菰할뻗幟최桶?깃션?銶轍鍍캤б佯菰暄鳧蘚?

뎠콱?荷桶뻗値슘?콱杰隣돨뵨瞳잚棍꼬땍屢寧몸변鑒角寧湳돨. 렘랬뵨橄昑떼唐몹菱돨츱츰왕쇌. 侶雷瓘淪콱옵鹿갛홍뒈쉔접寧몸宅잚棍꼬변鑒谿츰돨렘랬,좃諒꼇삔녑敲. 절흔,寧몸잚櫓옵鹿땍屢寧몸츰槨date()돨렘랬. 뎃角콱꼇콘쉥寧몸렘랬츱츰槨PHP돨밑숩俚,흔for샀諒while.

잚렘랬옵콘관벵PHP櫓杰館돨type hint. Type hint 角쥼寧몸눈뒵꽝鑒못렘랬돨잚돨츰俚. 흔벎콱돨신굶딧痰렘랬깻눈뒵寧몸꼇角잚돨茄절돨긴좆,PHP쉥끓?爀뻗贅귤쩠?fatal)댄轎” . 콱옵콘청唐못페劍잚謹못놔type hint,앎獗憐謹,俚륜눔,샀諒꼈랑令. 瞳蝎畇돨珂빅, type hint角뤠壇뎠관벵鑒莉잚謹휄닸瞳轢累.

Type hint角꿎桿변鑒꽝鑒샀諒頓炬륜돨茄절돨鑒앴잚謹돨쌥쓺. 콱옵콘悧角럿쀼侶몸렘랬. 횅훰콱퓻齡횻寧몸꽝鑒극伎角컴蘆鑒앴잚謹,흔憐謹. 3.2.1 횅괏긍陋잚怜끓??idget돨茄절.

3.2.1 <?php
//莉숭
class Widget
{
public $name=none;
public $created=FALSE;
}

//陋토포
class Assembler
{
public function make(Widget $w)
{
print(Making $w->name<br>n);
$w->created=TRUE;
}
}

//쉔접寧몸莉숭뚤蹶
$thing = new Widget;
$thing->name = Gadget;

//陋토莉숭
Assembler::make($thing);
?> 뇜죄눈뒵꽝鑒돨긴좆棍,렘랬벵唐寧몸景喝돨긴좆. 劍덜깊잚돨몸깎茄절. 콱壇뎠痰侶몸윱寧蕨뚤蹶돨橄昑뵨페劍렘랬.寧硅충蕨뚤蹶돨刀喇솝?脘뻗厠뻠玖宙캇幄옻溯뻗澎쓸襪轍?뎃瞳PHP櫓렘랬돨훨부긴좆怜角瞳렘랬돨寧땍렀鍋코. 鬧雷瞳User잚돨뭐芚변鑒櫓侶몸긴좆돨賈痰(3.1.2).

PHP瞳橄昑뵨렘랬?荷颱갤ⓕ諒뻗値촘幹牝ⓖ?흔public,private뵨protected. 쥼棍,콱옵鹿痰”static”윱깃션寧몸냥逃. 콱冷옵鹿瞳잚櫓?荷搭Ａ? 굶覽?牘齪騷勻뽕Х촘袈십슉켓仙亡鈴?

콱옵鹿瞳寧契櫓죗놔宮谿련狂렘駕돨섯몸橄昑,痰떵뵀윱롸몰劍쳬. 瞳3.1.2櫓,User잚唐좃몸private橄昑--$password뵨$lastLogin。