Bug #51515 [Bgs]: Testing the equality of a string and an int can fails
Edit report at http://bugs.php.net/bug.php?id=51515&edit=1
ID: 51515
Updated by: rasmus@php.net
Reported by: ianbara at imap dot cc
Summary: Testing the equality of a string and an int can fails
Status: Bogus
Type: Bug
Package: Scripting Engine problem
Operating System: Ubuntu Linux
PHP Version: 5.3.2
New Comment:
Use === if you want to avoid type-juggling issues like this. Still not
a bug.
Previous Comments:
------------------------------------------------------------------------
[2010-04-09 01:27:51] ianbara at imap dot cc
Consider the below code, which returns "EQUALS, NOT EQUALS". If not a
bug
exactly, surely this is not optimal behavior for a language.
<?php
$old_bad = "fca4ed9b761ca8ad209293248c2cdb56";
$old_good = "4ed9b761ca8ad209293248c2cdb56";
$new = 0;
if ($old_bad == $new) {
echo "EQUALS, ";
} else {
echo "NOT EQUALS, ";
}
if ($old_good == $new) {
echo "EQUALS\n";
} else {
echo "NOT EQUALS\n";
}
?>
------------------------------------------------------------------------
[2010-04-09 01:05:23] felipe@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
------------------------------------------------------------------------
[2010-04-08 23:22:52] ianbara at imap dot cc
Description:
------------
The attached code prints out EQUALS for me. It should not do this. ===
Does work
correctly however.
Test script:
---------------
<?php
$old = "fca4ed9b761ca8ad209293248c2cdb56";
$new = 0;
if ($old == $new)
echo "EQUALS";
else
echo "NOT EQUALS"
?>
Expected result:
----------------
NOT EQUALS
Actual result:
--------------
EQUALS
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=51515&edit=1
Thread (4 messages)