实例
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2018/5/6 0006 * Time: 14:33 */ class friend { //类属性 private $name = '朋友1'; private $sex = '男'; private $age = '18'; //类方法 // public function getinfo($name = '', $age = 0) // { // //对象属性的初始化,引用类成员变量要是用为变量$this,当前类实例对象 // //->是对象访问符 // $this->name = empty($name) ? $this->name : $name; // $this->age = ($age==0) ? $this->$age : $age; // return '姓名:'.$this->name.',年龄:'.$this->age.'<br>'; // } //类的构造方法在实例化中自动调用 //构造方法也是构造器;对象属性的初始化; public function __construct($name, $sex, $age) { $this->name = $name; $this->sex = $sex; $this->age = $age; } //查询器 //双下划綫开始的叫魔术方法 public function __get($name) { // TODO: Implement __get() method. return $this->$name; } /** * @return string */ public function getSex($mima = '') { $msg = '非法访问'; if (!empty($mima) && $mima != '123') { $msg = $this->sex; } return $msg; } /** * @return string */ public function getName() { return $this->name; } /** * @return string */ public function getAge() { return $this->age; } //设置器 //双下划綫为魔术方法 public function __set($name, $value) { if ($name == 'age') { if (in_array($value, range(14, 89))) { $this->$name = $value; } } // TODO: Implement __set() method. $this->$name = $value; } /** * @param string $name */ public function setName($name) { $this->name = $name; } /** * @param string $age */ public function setAge($age) { if (in_array($age, range(14, 49))) { $this->age = $age; } } }
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实例
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2018/5/6 0006 * Time: 14:50 */ require './class/friend.php'; //$fi = new friend(); //var_dump($fi); //$fi->name = 'haha'; //$fi->age = '19'; //$fi->sex = '男'; //echo $fi->name; //echo $fi->getinfo('你好',72); $gh = new friend('郭恒', '共和国', 22); //echo $gh->getSex(123); //echo $gh->getSex(1); //echo $gh->setName('但是'); //$gh->setAge('10'); // $gh->setAge('20'); //echo $gh->getAge(); //echo $gh->name; $gh->age = 24; echo $gh->age;
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