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@ 2014-10-03T12:20:19Z

<?php

$a = new ArrayObject(array(), ArrayObject::STD_PROP_LIST);
    $a['arr'] = 'array data';                             
    $a->prop = 'prop data';                               
$b = new ArrayObject();                                   
    $b['arr'] = 'array data';                             
    $b->prop = 'prop data';                               
                                                          
// ArrayObject Object                                     
// (                                                      
//      [prop] => prop data                               
// )                                                      
print_r($a->prop);                                              
                                                          
// ArrayObject Object                                     
// (                                                      
//      [arr] => array data                               
// )                                                      
print_r($b);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Creation of dynamic property ArrayObject::$prop is deprecated in /in/O4UCj on line 5 Deprecated: Creation of dynamic property ArrayObject::$prop is deprecated in /in/O4UCj on line 8 prop dataArrayObject Object ( [prop] => prop data [storage:ArrayObject:private] => Array ( [arr] => array data ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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