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

go to bug id or search bugs for

Bug #71706 Assignment operators in "if" expression
Submitted: 2016-03-03 07:20 UTC Modified: 2016-03-03 10:10 UTC
From: dmitryscaletta at mail dot ru Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 7.0.3 OS: Windows 10
Private report: No CVE-ID: None
View Developer Edit
Welcome! If you don't have a Git account, you can't do anything here.
If you reported this bug, you can edit this bug over here.
(description)
Block user comment
Status: Assign to:
Package:
Bug Type:
Summary:
From: dmitryscaletta at mail dot ru
New email:
PHP Version: OS:

 

 [2016-03-03 07:20 UTC] dmitryscaletta at mail dot ru 
Description:
------------
I expect "78" or warning, but i have "1"

Test script:
---------------
<?php
if ($var = 78 || $var = 456 || $var = 464) {
    echo $var;
}

Expected result:
----------------
1

Actual result:
--------------
78

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2016-03-03 07:21 UTC] dmitryscaletta at mail dot ru 
(I made a mistake)
Expected result:
----------------
78

Actual result:
--------------
1
 [2016-03-03 07:28 UTC] dmitryscaletta at mail dot ru
-Status: Open +Status: Closed
 [2016-03-03 07:28 UTC] dmitryscaletta at mail dot ru 
I realized my mistake. || returns bool
 [2016-03-03 07:30 UTC] inefedor at gmail dot com 
Operator || has higher precedence than assignment operator hence your expression is being treated as $var = (78 || $var = (456 || $var = 464))
 [2016-03-03 10:10 UTC] requinix@php.net
-Status: Closed +Status: Not a bug
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Fri Oct 31 15:00:01 2025 UTC