<?php
header('Content-Type:text/html;charset=utf-8');
//抽象类
abstract class Humanity {

  public $name;
  public $sex;
  public $iq=10;
  protected $money;
  protected $dna;
  const BIRTHPLACE='地球';
  static public $counter=0;//静态属性，它是公共的资源和具体的实例没有关系
  //构造函数
  public function __construct($name,$sex){
    self::$counter++;
    $this->name=$name;
    $this->sex=$sex;
  }
  protected function chew($food){
    echo "<p>{$food}已经被咀嚼完成！</p>";
  }
  //抽象方法
  abstract public function eat($food);
  static public function hello(){
    echo '<p>您好！我是来自'.self::BIRTHPLACE.'的人类</p>';
  }
}
class Student extends Humanity {
  const BIRTHPLACE='火星';
  private  $hh=666;
  public $studentId;
  public function __set($name,$value){

     $this->$name=$value;
  }
  public function __get($name){


      return ($this->$name)*666;

  }

  public function test($subject){
    echo "<p>{$this->name}正在考{$subject}！</p>";
  }
  public function eat($food){
    $this->chew($food);
    echo "<p>{$this->name}正在快速的吃{$food}！</p>";
  }
}
$hanMM=new Student('韩梅梅','女');
echo $hanMM->hh;

解析：

核心在于，私有性的​​《《《属性》》》​​调用时才能执行​​__set​​和​​__get​​方法。

怎么执行呢？

调用私有性的属性即可，但是切记调用时不能赋值哦

php里面的魔术方法__魔术方法名__():__set __get __call_php

<?php
header('Content-Type:text/html;charset=utf-8');
//抽象类
abstract class Humanity {

  public $name;
  public $sex;
  public $iq=10;
  protected $money;
  protected $dna;
  const BIRTHPLACE='地球';
  static public $counter=0;//静态属性，它是公共的资源和具体的实例没有关系
  //构造函数
  public function __construct($name,$sex){
    self::$counter++;
    $this->name=$name;
    $this->sex=$sex;
  }
  protected function chew($food){
    echo "<p>{$food}已经被咀嚼完成！</p>";
  }
  //抽象方法
  abstract public function eat($food);
  static public function hello(){
    echo '<p>您好！我是来自'.self::BIRTHPLACE.'的人类</p>';
  }
}
class Student extends Humanity {
  const BIRTHPLACE='火星';
  private  $hh=666;
  public $studentId;
  public function __call($funcName,$agrs){
    echo "__call方法";
  }

  private function test($subject){
    echo "<p>{$this->name}正在考{$subject}！</p>";
  }
  public function eat($food){
    $this->chew($food);
    echo "<p>{$this->name}正在快速的吃{$food}！</p>";
  }
}
$hanMM=new Student('韩梅梅','女');
echo $hanMM->test();

解析：

调用私有性的方法时才自动执行的哦

php里面的魔术方法__魔术方法名__():__set __get __call_后端_02