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@ 2021-01-16T18:15:52Z

<?php

function test()
{
    debug_zval_dump(new stdClass);
    
    $o1 = new stdClass;
    debug_zval_dump($o1);
    
    $o2 = new stdClass;
    $o2_copy = $o2;
    debug_zval_dump($o2_copy);
    
    $o3 = new stdClass;
    $o3_ref =& $o3;
    debug_zval_dump($o3_ref);
    
    debug_zval_dump(array(0));
    
    $a1 = array(1);
    debug_zval_dump($a1);
    
    $a2 = array(2);
    $a2_copy = $a2;
    debug_zval_dump($a2_copy);
    
    $a3 = array(3);
    $a3_ref =& $a3;
    debug_zval_dump($a3_ref);
    
    debug_zval_dump('Hello World 0');
    
    $s1 = 'Hello World 1';
    debug_zval_dump($s1);
    
    $s2 = 'Hello World 2';
    $s2_copy = $s2;
    debug_zval_dump($s2_copy);
    
    $s3 = 'Hello World 3';
    $s3_ref =& $s3;
    debug_zval_dump($s3_ref);
    
    debug_zval_dump(0);
    
    $i1 = 1;
    debug_zval_dump($i1);
    
    $i2 = 2;
    $i2_copy = $i2;
    debug_zval_dump($i2_copy);
    
    $i3 = 2;
    $i3_ref =& $i3;
    debug_zval_dump($i3_ref);
}

test();

Output for git.master, rfc.property-hooks: object(stdClass)#1 (0) refcount(1){ } object(stdClass)#1 (0) refcount(2){ } object(stdClass)#2 (0) refcount(3){ } object(stdClass)#3 (0) refcount(2){ } array(1) refcount(2){ [0]=> int(0) } array(1) refcount(3){ [0]=> int(1) } array(1) refcount(4){ [0]=> int(2) } array(1) refcount(3){ [0]=> int(3) } string(13) "Hello World 0" interned string(13) "Hello World 1" interned string(13) "Hello World 2" interned string(13) "Hello World 3" interned int(0) int(1) int(2) int(2)
Output for git.master_jit: object(stdClass)#1 (0) refcount(1){ } object(stdClass)#1 (0) refcount(2){ } object(stdClass)#2 (0) refcount(3){ } object(stdClass)#3 (0) refcount(2){ } array(1) refcount(2){ [0]=> int(0) } array(1) refcount(3){ [0]=> int(1) } array(1) refcount(4){ [0]=> int(2) } array(1) refcount(3){ [0]=> int(3) } string(13) "Hello World 0" refcount(2) string(13) "Hello World 1" refcount(3) string(13) "Hello World 2" refcount(4) string(13) "Hello World 3" refcount(3) int(0) int(1) int(2) int(2)

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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