Bug #75880 [Opn->Csd]: array key duplicate with integer and string

Edit report at https://bugs.php.net/bug.php?id=75880&edit=1 ID: 75880 Updated by: nikic@php.net Reported by: mars0222 at gmail dot com Summary: array key duplicate with integer and string -Status: Open +Status: Closed Type: Bug -Package: PHP Language Specification +Package: Scripting Engine problem Operating System: ubuntu:16.04 PHP Version: 7.0.27 -Assigned To: +Assigned To: nikic Block user comment: N Private report: N New Comment: Fixed in 7.2, see https://wiki.php.net/rfc/convert_numeric_keys_in_object_array_casts. Previous Comments: ------------------------------------------------------------------------ [2018-01-27 10:02:13] mars0222 at gmail dot com Description: ------------ When use (array) to convert the object to array, the key will using string even the it is integer, then the string key will never been get. Test script: --------------- $obj = '{"300": {"id": "foo"}}'; $obj = json_decode($obj); $obj = (array)$obj; var_dump($obj); // array (size=1) '300' => string 'foo' (length=3) var_dump($obj["300"]); // null var_dump($obj[300]); // null Expected result: ---------------- It should be convert the object key to integer if it can convert to integer. Actual result: -------------- When convert the object the key will always be string even the key can convert to integer. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75880&edit=1