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<?php
 
// your code goes here
$a = (object) [0 => 'aaa'];
var_dump($a, $a->{0});
 
$b = new stdClass;
$b->{0} = 'aaa';
var_dump($b, $b->{0});

Success #stdin #stdout #stderr 0.01s 23468KB

stdin

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Standard input is empty

stdout

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object(stdClass)#1 (1) {
  [0]=>
  string(3) "aaa"
}
NULL
object(stdClass)#2 (1) {
  ["0"]=>
  string(3) "aaa"
}
string(3) "aaa"

stderr

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PHP Notice:  Undefined property: stdClass::$0 in /home/qNctPB/prog.php on line 5

https://ideone.com/YjL9K8

language:

PHP (php 7.3.5)

created:

visibility:

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