Detailed explanation of the usage and difference between __call and _

Detailed explanation of the usage and difference between __call and __callStatic in php

伊谢尔伦

Release： 2023-03-12 13:48:01

Original

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The call and callStatic magic methods were added after php 5.3.

#call When the method to be called does not exist or has insufficient permissions, the call method will be automatically called.

callStatic When the called static method does not exist or has insufficient permissions, the callStatic method will be automatically called.

call($funcname, $arguments)
callStatic($funcname, $arguments)

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Parameter description:

##$funcname String Call method name.

$arguments Array Parameters taken when calling the method.

call example

<?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 example

<?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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