Edit report at http://bugs.php.net/bug.php?id=52025&edit=1
ID: 52025
User updated by: djmix-2006 at hotmail dot com
Reported by: djmix-2006 at hotmail dot com
Summary: Array keys type cast error when use maximum integer
value
-Status: Feedback
+Status: Open
Type: Bug
Package: Scripting Engine problem
Operating System: Windows
-PHP Version: 5.2.13
+PHP Version: 5.2.9
New Comment:
No problem on 5.2.13.
Yes on PHP 5.2.9 and PHP 5.2.5
Previous Comments:
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[2010-06-09 03:53:12] [email protected]
Please try using this snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
I cannot reproduce it on 5.2.14-dev...
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[2010-06-09 02:32:01] djmix-2006 at hotmail dot com
Description:
------------
Tested on PHP 5.2.9
When trying to check if a key exists into an array, and the key is the
standard representation of an integer, php must interpreted as such like
the documentation says: (i.e. "8" will be interpreted as 8, while "08"
will be interpreted as "08")
This don't happens when the value of the key is the same than the
maximum value of an integer (PHP_INT_MAX).
Assuming that PHP_INT_MAX is 2147483647, the two lines below will not
return true as expected.
isset($array[2147483647]); //true
isset($array['2147483647']); //false
This doesn't happens when key is smaller than the maximum value of an
integer.
isset($array[2147483646]); //true
isset($array['2147483646']); //true
Test script:
---------------
<?php
$maxInteger = (int)PHP_INT_MAX;
$keyInt = $maxInteger;
$keyStr = strval($keyInt);
echo "Maximum value is $maxInteger \n";
$arr = array($keyInt => 1);
echo 'Key Integer exists: ' . (int)isset($arr[$keyInt]) . "\n"; //Yes
echo 'Key String exists: ' . (int)isset($arr[$keyStr]) . "\n"; //No
$keyInt = $maxInteger - 1;
$keyStr = strval($keyInt);
echo 'Key Integer exists: ' . (int)isset($arr[$keyInt]) . "\n"; //Yes
echo 'Key String exists: ' . (int)isset($arr[$keyStr]) . "\n"; //Yes
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Edit this bug report at http://bugs.php.net/bug.php?id=52025&edit=1
