From:
Operating system: Windows
PHP version: 5.2.13
Package: JSON related
Bug Type: Bug
Bug description:casting json objects to array
Description:
------------
We use this array:
array(2) { [1]=> int(100) [2]=> int(200) }
When a array will be encoded into a json string, php converts integer
indexes t o strings:
string(17) "{"1":100,"2":200}"
When php decodes the json string back, it will be an object:
object(stdClass)#1 (2) { ["1"]=> int(100) ["2"]=> int(200) }
To avoid the problem that you not can acces integer indexes of a object you
must cast the object to an array:
array(2) { ["1"]=> int(100) ["2"]=> int(200) }
Now the indexes become strings instead of integers, which you cannot
access:
$arr2[1] = NULL
The json_decode function should convert indexes back to integer, if they
are a string number, like php always does when you create an array.
Test script:
---------------
$arr = array(1=>100,2=>200,"1"=>100,"2"=>200);
$json = json_encode($arr);
$arr2 = (array)json_decode($json);
var_dump($arr2);
var_dump($arr2[1]);
var_dump($arr2["1"]);
Expected result:
----------------
array(4) {
[1]=>
int(100)
[2]=>
int(200)
}
int(100)
int(100)
Actual result:
--------------
array(4) {
["1"]=>
int(100)
["2"]=>
int(200)
}
NULL
NULL
--
Edit bug report at http://bugs.php.net/bug.php?id=51635&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51635&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51635&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51635&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51635&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51635&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51635&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51635&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51635&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51635&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51635&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51635&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51635&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51635&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51635&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51635&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51635&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51635&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51635&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51635&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51635&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51635&r=mysqlcfg
