php5类中三种数据类型的区别
Lepaskan: 2016-07-25 09:11:05
asal
976 orang telah melayarinya
-
-
/**
- * parent 只能调用父类中的公有或受保护的方法,不能调用父类中的属性
- * self 可以调用父类中除私有类型的方法和属性外的所有数据
- */
- class User{
- public $name;
- private $passwd;
- protected $email;
- public function __construct(){
- //print __CLASS__." ";
- $this->name= 'simple';
- $this->passwd='123456';
- $this->email = 'test123@163.com';
- }
- public function show(){
- print "good ";
- }
- public function inUserClassPublic() {
- print __CLASS__.'::'.__FUNCTION__." ";
- }
- protected function inUserClassProtected(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
- private function inUserClassPrivate(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
- }
class simpleUser extends User {
- public function __construct(){
- //print __CLASS__." ";
- parent::__construct();
- }
-
- public function show(){
- print $this->name."//public ";
- print $this->passwd."//private ";
- print $this->email."//protected ";
- }
-
- public function inSimpleUserClassPublic() {
- print __CLASS__.'::'.__FUNCTION__." ";
- }
-
- protected function inSimpleUserClassProtected(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
-
- private function inSimpleUserClassPrivate() {
- print __CLASS__.'::'.__FUNCTION__." ";
- }
- }
class adminUser extends simpleUser {
- protected $admin_user;
- public function __construct(){
- //print __CLASS__." ";
- parent::__construct();
- }
-
- public function inAdminUserClassPublic(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
-
- protected function inAdminUserClassProtected(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
-
- private function inAdminUserClassPrivate(){
- print __CLASS__.'::'.__FUNCTION__." ";
- }
- }
class administrator extends adminUser {
- public function __construct(){
- parent::__construct();
- }
- }
/**
- * 在类的实例中 只有公有属性和方法才可以通过实例化来调用
- */
- $s = new administrator();
- print '-------------------';
- $s->show();
- ?>
-
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