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@ 2015-07-23T14:18:45Z

<?php

class BaseItem
{
    static protected $_instances = 0;
    
    private function __construct(){
        echo 'Tworzymy obiekt podstawowy'.PHP_EOL;
    }
    
    public function doSomeConfig(){
        echo 'Konfigurujemy obiekt '.((get_class($this) =='baseItem') ? 'podstawowy' : 'specjalny').'<br/>';
    }
    
    public function work() {
        echo 'Ja dzialam: '.get_class($this).' '.PHP_EOL;
    }
    
    public static function factory() {
        $object = new BaseItem;
        $object->doSomeConfig();
        self::$_instances++;
        
        return $object;
    }
}

class SpecialItem extends BaseItem
{
    private function __construct(){
        echo 'Tworzymy obiekt specjalny'.PHP_EOL;
    }
    
    public static function factory() {
        $object = new SpecialItem;
        $object->doSomeConfig();
        parent::$_instances++;
        
        return $object;
    }
}

$baseObject = BaseItem::factory();
$specialObject = SpecialItem::factory();

$baseObject->work();
$specialObject->work();

Output for git.master, git.master_jit, rfc.property-hooks: Tworzymy obiekt podstawowy Konfigurujemy obiekt specjalny<br/>Tworzymy obiekt specjalny Konfigurujemy obiekt specjalny<br/>Ja dzialam: BaseItem Ja dzialam: SpecialItem

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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