php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #25470 array_merge converts indexes differently in 4.3.3
Submitted: 2003-09-10 11:53 UTC Modified: 2003-09-24 09:37 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: bmansion at mamasam dot com Assigned:
Status: Not a bug Package: Arrays related
PHP Version: 4.3.3 OS:
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: bmansion at mamasam dot com
New email:
PHP Version: OS:

 

 [2003-09-10 11:53 UTC] bmansion at mamasam dot com 
Description:
------------
When the index in the array is a string like "1234567890", I mean containing only figures, array_merge will convert it to an int and change the index by resetting the value.

2 options:
Make our own array_merge function.

PHP Team fix array_merge so that it keep track of the index type.

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2003-09-24 07:13 UTC] f dot berger at 21torr dot com 
The Category should be changed and the bug should be retitled, because this is a general bug, not related to PEAR, and not related to HTML_QuickForm.

Problem I have:
  $ar = array ('-999'=>'a',0=>'b',1=>'c');
  $ar2 = array ('x'=>'x','y'=>'y','z'=>'z');
  print_r(array_merge($ar,$ar2));
results in a version prior to 4.3.3 to
  Array ( [-999] => c [0] => b [1] => a [x] => x [y] => y [z] => z )
in version 4.3.3 to
   [0] => a [1] => b [2] => c [x] => x [y] => y [z] => z )
 [2003-09-24 07:28 UTC] bmansion at mamasam dot com 
Changing bug category as requested by f.berger.
 [2003-09-24 09:37 UTC] sniper@php.net 
RTFM: "Don't forget that numeric keys will be renumbered!"

"-999" is numeric
 [2003-10-02 05:48 UTC] f dot berger at 21torr dot com 
in regards to RTFM:

as you see in the example, it was written as '-999', means it is a string!

Furthermore, array_merge is behaving correctly (not converting strings containing only numbers to numbers..) in earlier version

what for example if my key NEEDS to be '0497121' (this is my phone-number-prefix), in this case i need the leading 0, and I don't need it renumbered, because for my context this is a string, not an int.

The Documentation is correct on ints, the problem is that a string only containing numbers will be converted to an int before merging the arrays (which is a new behaviour, and in my Eye bogus)
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Sat Mar 15 02:01:30 2025 UTC