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

go to bug id or search bugs for

Bug #51878 A bug about function's reference params
Submitted: 2010-05-21 03:48 UTC Modified: 2010-05-21 11:27 UTC
From: inqing at gmail dot com Assigned:
Status: Not a bug Package: Unknown/Other Function
PHP Version: 5.2.13 OS: Linux & windows
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: inqing at gmail dot com
New email:
PHP Version: OS:

 

 [2010-05-21 03:48 UTC] inqing at gmail dot com 
Description:
------------
for this code when you run in php4, the app will output "func", but under php5 your will get another result -- "php"
I don't know why.

Test script:
---------------
<?php
function func(&$param){
  $param = "func";
}

func($param="php");

echo $param;
?>

Expected result:
----------------
func

Actual result:
--------------
php

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2010-05-21 10:42 UTC] johannes@php.net
-Status: Open +Status: Bogus
 [2010-05-21 10:42 UTC] johannes@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

With an expression like

do_something($foo = 'bar');

the behavior is undefined. We don't guarantee i which order the function call and the assignment are being executed. This might change any time.
 [2010-05-21 11:27 UTC] mike@php.net 
http://php.net/manual/en/language.references.pass.php
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Tue Jul 08 14:01:33 2025 UTC