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@ 2013-04-13T18:50:18Z

<?php
 
class A
{
    function __construct()
    {
        echo get_class($this->getInstance()), PHP_EOL,
		get_class(static::getInstance()), PHP_EOL,
		get_class(self::getInstance()), PHP_EOL;
    }
 
    public static function getInstance()
    {
        static $getInstance;
 
        if (null == $getInstance) $getInstance = self::makeInstance();
 
        return $getInstance;
    }
 
    public static function makeInstance()
    {
        return new stdClass();
    }
}
 
$a = new A();
 
class B extends A
{
    function __construct()
    {
        echo get_class($this->getInstance()), PHP_EOL,
		get_class(static::getInstance()), PHP_EOL,
		get_class(self::getInstance()), PHP_EOL;
    }
 
    public static function makeInstance()
    {
        return new ArrayObject();
    }
 
    public function __destruct()
    {
        die();
    }
}
 
$a = new B();

Output for git.master, git.master_jit, rfc.property-hooks: stdClass stdClass stdClass stdClass stdClass stdClass

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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