Bug #65237 [Opn->Nab]: Array Equality Bug
Edit report at https://bugs.php.net/bug.php?id=65237&edit=1
ID: 65237
Updated by: ab@php.net
Reported by: jchan at malwarebytes dot org
Summary: Array Equality Bug
-Status: Open
+Status: Not a bug
Type: Bug
Package: *General Issues
Operating System: OSX & Linux Tested
PHP Version: 5.3.26
Block user comment: N
Private report: N
New Comment:
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
array('apple','banana') == array(1 =>
'banana',2=>'apple')
is the same as
array(0 => 'apple', 1 => 'banana') == array(1 =>
'banana',2=>'apple')
So the doc won :)
Previous Comments:
------------------------------------------------------------------------
[2013-07-10 17:32:11] jchan at malwarebytes dot org
Description:
------------
When comparing 2 arrays in an if statement, array equality according to the
documentation (http://www.php.net/manual/en/language.operators.array.php) does not
work. According to the docs, order should not matter, but when comparing 2 arrays
directly it does.
Test script:
---------------
<?php
// based off of http://www.php.net/manual/en/language.operators.array.php
$a = array("apple", "banana");
$b = array(1 => "banana", "0" => "apple");
## WORKS ##
var_dump($a == $b); // bool(true)
var_dump($a === $b); // bool(false)
var_dump(array("apple", "banana") == array(1 => "banana",
"0" => "apple")); // bool(true)
## FAILS? ##
if (array('apple','banana') == array(1 =>
'banana',2=>'apple'))
echo "they are equal.\n";
else
echo "They are not equal.\n"; // this is the response I get
## yet if I do:
if ($a == $b)
echo "they are equal.\n"; // this is the response I get...
else
echo "They are not equal.\n";
?>
Expected result:
----------------
bool(true)
bool(false)
bool(true)
they are equal.
they are equal.
Actual result:
--------------
bool(true)
bool(false)
bool(true)
They are not equal.
they are equal.
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=65237&edit=1
Thread (3 messages)