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[2012-04-06 23:49 UTC] phpbugs at deep-freeze dot ca
Description:
------------
Casting from an object to an array with numeric key leaves the element inaccessible.
Given a object with a field whose name is numeric, after a cast to array, there is no means to access the element.
That is $array['804496778'] yields an undefined error
array_key_exists(804496778, $array); yields false
array_key_exists('804496778', $array); fields false
yet a var_dump($array); shows this element;
and a array_keys($array); returns array(1) { [0] string(9) "804496778" }
Test script:
---------------
$object = new stdClass();
$key = '804496778';
$object->{$key} = "Hello;
$array = (array)$object;
echo $array[$key], ' ', (int)array_key_exists($key, $array), PHP_EOL;
var_dump($array)
Expected result:
----------------
Hello 1
array(1) {
["804496778"]=>
string(5) "Hello"
}
Actual result:
--------------
PHP Notice: Undefined index: 804496778 in /home/icewolf/bug.php on line 6
0
array(1) {
["804496778"]=>
string(5) "Hello"
}
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Last updated: Thu Nov 21 11:01:29 2024 UTC |
Hi, in a object property lookup by name always in string, but in array numeric string(like "22200" ) key will transform to numeric but not a string anymore. when conversion internal HashTable did't changed so after conversion, key lookup will fail. as you posted: array(1) { ["804496778"]=> string(5) "Hello" } the key is string but not number. if you do like this: $array["1000"] = "value" var_dump($array); array(1) { [1000]=> string(5) "value" } see ? "1000" changed to 1000. I've post a discussion about this in internal list. http://marc.info/?l=php- internals&m=133390323614733&w=2