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@ 2013-04-11T21:10:16Z

<?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);                                              
                                                          
// ArrayObject Object                                     
// (                                                      
//      [arr] => array data                               
// )                                                      
print_r($b);

Output for 8.2.0 - 8.2.25, 8.3.0 - 8.3.13: Deprecated: Creation of dynamic property ArrayObject::$prop is deprecated in /in/Z6hWT on line 5 Deprecated: Creation of dynamic property ArrayObject::$prop is deprecated in /in/Z6hWT on line 8 ArrayObject Object ( [prop] => prop data [storage:ArrayObject:private] => Array ( [arr] => array data ) ) ArrayObject Object ( [prop] => prop data [storage:ArrayObject:private] => Array ( [arr] => array data ) )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30: ArrayObject Object ( [prop] => prop data [storage:ArrayObject:private] => Array ( [arr] => array data ) ) ArrayObject Object ( [prop] => prop data [storage:ArrayObject:private] => Array ( [arr] => array data ) )

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