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关于php __call 与 __callStatic 的内容讲解

jacklove

Lepaskan： 2023-03-31 14:06:01

asal

1885 orang telah melayarinya

php 5.3 后新增了 __call 与__callStatic 魔法方法。

__call 当要调用的方法不存在或权限不足时，会自动调用__call 方法。

__callStatic 当调用的静态方法不存在或权限不足时，会自动调用__callStatic方法。

__call($funcname, $arguments)

__callStatic($funcname, $arguments)

参数说明：

$funcname String 调用的方法名称。

$arguments Array 调用方法时所带的参数。

__call 例子

<?php
class Member{
    protected $memberdata = array();
    public function __call($func, $arguments){
        list($type, $name) = explode(&#39;_&#39;, $func);
    
        if(!in_array($type, array(&#39;set&#39;,&#39;get&#39;)) || $name==&#39;&#39;){
            return &#39;&#39;;
        }
        switch($type){
            case &#39;set&#39;:
                $this->memberdata[$name] = $arguments[0];
                break;
            
            case &#39;get&#39;:
                return isset($this->memberdata[$name])? $this->memberdata[$name] : &#39;&#39;;
                break;
            
            default:
        }
    }
}
class User extends Member{
    public function show(){
        if($this->memberdata){
            foreach($this->memberdata as $key=>$member){
                echo $key.&#39;:&#39;.$member.&#39;<br>&#39;;
            }
        }
    }
}
class Profession extends Member{
    public function show(){
        if($this->memberdata){
            foreach($this->memberdata as $key=>$member){
                echo $key.&#39;:&#39;.$member.&#39;<br>&#39;;
            }
        }
    }
}
$userobj = new User();
$userobj->set_name(&#39;fdipzone&#39;);
$userobj->set_age(29);
$userobj->show();
$probj = new Profession();
$probj->set_profession(&#39;IT SERVICE&#39;);
$probj->set_price(2500);
$probj->show();
?>

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__callStatic例子

<?php
class Member{
    protected static $memberdata = array();
    public static function __callStatic($func, $arguments){
        list($type, $name) = explode(&#39;_&#39;, $func);
        
        if(!in_array($type, array(&#39;set&#39;,&#39;get&#39;)) || $name==&#39;&#39;){
            return &#39;&#39;;
        }
        $feature = get_called_class();
        switch($type){
            case &#39;set&#39;:
                self::$memberdata[$feature][$name] = $arguments[0];
                break;
            case &#39;get&#39;:
                return isset(self::$memberdata[$feature][$name])? self::$memberdata[$feature][$name] : &#39;&#39;;
                break;
            default:
        }
    
    }
}
class User extends Member{
    public static function show(){
        $feature = get_called_class();
        if(self::$memberdata[$feature]){
            foreach(self::$memberdata[$feature] as $key=>$member){
                echo $key.&#39;:&#39;.$member.&#39;<br>&#39;;
            }
        }
    }
}
class Profession extends Member{
    public static function show(){
        $feature = get_called_class();
        if(self::$memberdata[$feature]){
            foreach(self::$memberdata[$feature] as $key=>$member){
                echo $key.&#39;:&#39;.$member.&#39;<br>&#39;;
            }
        }
    }
}
User::set_name(&#39;fdipzone&#39;);
User::set_age(29);
User::show();
Profession::set_profession(&#39;IT SERVICE&#39;);
Profession::set_price(2500);
Profession::show();
?>

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