PHP object-oriented magic method

This article mainly introduces the object-oriented magic methods in PHP, which has certain reference value. Now I share it with everyone. Friends in need can refer to it

Common magic methods

Attribute related

__set($property, $value)     给不可访问的属性赋值

__get($propertyName)         调用不可访问的属性

__isset($content)    
对不可访问的属性使用empty()、isset()时触发

__unset($content)     
对不可访问的属性使用unset()时触发

Method related

__call(string $function_name, array $arguments)    
调用不可访问的普通方法
$function_name  被调用的方法名
$arguments      被调用方法的多个参数


__callStatic(string $function_name, array $arguments)
调用不可访问的静态方法

Comprehensive example

<?php

class Example
{
    // 可访问的属性
    public $price = 111;

    //不可访问的属性
    private $secret = &#39;我是不可访问的属性&#39;;
    private $age = 23;

    //不可访问的普通方法
    private function donTell()
    {
        echo &#39;不能说的秘密&#39;;
    }

    //不可访问的静态方法
    private static function super()
    {
        echo &#39;我是不可访问的静态方法&#39;;
    }

    //魔术方法
    public function __set($property, $value)
    {
        echo &#39;给不可访问的属性赋值，您要设置的属性是&#39;.$property.&#39;,值是&#39;.$value;
        $this -> $property = $value;
    }

    public function __get($propertyName)
    {
        echo &#39;调用私有属性&#39;.$propertyName.&#39;，它的属性值是&#39;.$this -> $propertyName;
    }

    public function __isset($content)
    {
        echo &#39;你在对不可访问的属性进行empty()、isset()操作&#39;;
        isset($this->$content);
    }

    public function __unset($content)
    {
        echo &#39;你在对不可访问的属性进行unset()操作&#39;;
        isset($this->$content);
    }


    public function __call($function_name,$args)
    {
        echo &#39;你在调用不可访问的普通方法&#39;;
        echo &#39;方法名是&#39;.$function_name;
        var_dump($args);
    }

    public static function __callStatic($function_name,$args)
    {
        echo &#39;调用不可访问的静态方法&#39;;
        echo &#39;方法名是&#39;.$function_name;
    }

}


//实例化对象
$e1 = new Example();


/******* 触发各种魔术方法 ***********/

// 测试__set方法
$e1 -> secret = &#39;我是秘密&#39;;
echo &#39;<hr/>&#39;;

// 测试__get方法
$e1 -> age;
echo &#39;<hr/>&#39;;

// 测试__isset()方法
echo isset($e1 -> age);
echo &#39;<hr/>&#39;;

// 测试__unset方法
unset($e1 -> age);
echo &#39;<hr/>&#39;;

// 测试__call方法
$e1 -> donTell([1,2,3]);
echo &#39;<hr/>&#39;;

// 测试__callStatic方法
$e1 -> super();



?>

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php object-oriented static Methods, properties and constants

php object-oriented constructors and destructors

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