PHP封装

<?php

class Person{

public $name;

protected $age;

private $salary;

function __construct($name,$age,$salary){

$this->name=$name;

$this->age=$age;

$this->salary=$salary;

}

//我们可以通过方法来访问protected或者private变量

//获取薪水

public function getSalary($user,$pass){

if($user=="kong"&&$pass="123"){

return $this->salary;

}else{

return "sorry，你无权查看";

}

}

//修改年龄

public function setAge($age){

$this->age=$age;

}

//查看年龄

public function getAge(){

return $this->age;

}

}

//创建一个人

$p1=new Person("小孔",22,2000);

echo $p1->name;

echo $p1->getSalary("kong","123");

//修改年龄

$p1->setAge(23);

echo $p1->getAge();

?>