Bug #51635 [Opn->Bgs]: casting json objects to array

Edit report at http://bugs.php.net/bug.php?id=51635&edit=1 ID: 51635 Updated by: johannes@php.net Reported by: joel dot gaehwiler at bluewin dot ch Summary: casting json objects to array -Status: Open +Status: Bogus Type: Bug Package: JSON related Operating System: Windows PHP Version: 5.2.13 New Comment: This is expected, javaScript arrays are zero-indexed so your PHP array can't be represented as a javaScript array and has to be converted to an object. When converting an object back PHP defaults to objects. But you can use the second param for json_decode(). For the inaccessible keys which are the result then there's another report already. So that part is duplicate. Previous Comments: ------------------------------------------------------------------------ [2010-04-22 15:49:33] joel dot gaehwiler at bluewin dot ch 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 this bug report at http://bugs.php.net/bug.php?id=51635&edit=1