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@ 2015-09-11T14:07:13Z

<?php
var_dump(md5((string)null));die;
class T {
    private $attr = [1,2,3];
}
$t = function(){
  var_dump($this->attr);
  
  return $this;
};
$t = $t->bindTo(new T(), 'T');
//$c1 = Closure::bind($t, new T(), 'T');
$t();
var_dump($t());
die;


abstract class T
{
    static public $instanses;
    
    final private function __construct(){
        
    }
    
    public static function getInstance()
    {
        var_dump(static::$instanses);
        if (!(static::$instanses instanceof static)) {
            static::$instanses = new static;
        }
    var_dump(static::$instanses);
        return static::$instanses;
    }
}

class A extends T
{
    static public $instanses;
}

class B extends A
{
    static public $instanses;
}

$t = A::getInstance();
var_dump($t);

$t1 = B::getInstance();
var_dump($t1);

new B();




?>

Output for git.master, git.master_jit, rfc.property-hooks: string(32) "d41d8cd98f00b204e9800998ecf8427e"

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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