Bug #54140 [NEW]: array_merge() break keys during merge

From: Date: Wed, 02 Mar 2011 17:21:07 +0000
Subject: Bug #54140 [NEW]: array_merge() break keys during merge
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-159162@lists.php.net to get a copy of this message 
From:             
Operating system: 
PHP version:      5.3.5
Package:          Arrays related
Bug Type:         Bug
Bug description:array_merge() break keys during merge

Description:
------------
array_merge interprets string keys, containing only digits as numeric keys,
if numeric overflow not reached.

String keys should works as strings regarless of their contents.


Test script:
---------------
var_dump(array_merge(array('t777'=> array("I'm a string"))));
var_dump(array_merge(array("42424242"=> array("I'm a string of
digits"))));
var_dump(array_merge(array("777777777777777777777777777777777777777777777777777777777"=>
array("I'm string of digits too"))));

var_dump(is_string("42424242"));
var_dump(is_string(42424242));
var_dump(is_string("777777777777777777777777777777777777777777777777777777777"));


Expected result:
----------------
array(1) {
  ["t777"]=>
  array(1) {
    [0]=>
    string(12) "I'm a string"
  }
}
array(1) {
  ["42424242"]=>
  array(1) {
    [0]=>
    string(22) "I'm a string of digits"
  }
}
array(1) {
  ["777777777777777777777777777777777777777777777777777777777"]=>
  array(1) {
    [0]=>
    string(24) "I'm string of digits too"
  }
}
bool(true)
bool(false)
bool(true)

Actual result:
--------------
array(1) {
  ["t777"]=>
  array(1) {
    [0]=>
    string(12) "I'm a string"
  }
}
array(1) {
  [0]=>
  array(1) {
    [0]=>
    string(22) "I'm a string of digits"
  }
}
array(1) {
  ["777777777777777777777777777777777777777777777777777777777"]=>
  array(1) {
    [0]=>
    string(24) "I'm string of digits too"
  }
}
bool(true)
bool(false)
bool(true)

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54140&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=54140&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=54140&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=54140&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=54140&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54140&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=54140&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=54140&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=54140&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=54140&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=54140&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=54140&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=54140&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=54140&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=54140&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54140&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54140&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=54140&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=54140&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=54140&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=54140&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=54140&r=mysqlcfg

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