From: xi dot wang at gmail dot com
Operating system:
PHP version: master-Git-2013-01-30 (Git)
Package: Arrays related
Bug Type: Bug
Bug description:incorrect use of abs() in array_pad()
Description:
------------
Using `abs(pad_size) < 0' to catch the LONG_MIN case invokes undefined
behavior in
C. gcc simply assumes abs(pad_size) must be non-negative and discards the
check.
Test script:
---------------
<?php
// This is for 64-bit systems.
$input = array(12, 10, 9);
$input = array_pad($input, -9223372036854775808, 0);
var_dump($input);
?>
Expected result:
----------------
Warning: array_pad(): You may only pad up to 1048576 elements at a time in
t.php
on line 3
bool(false)
Actual result:
--------------
array(3) {
[0]=>
int(12)
[1]=>
int(10)
[2]=>
int(9)
}
--
Edit bug report at https://bugs.php.net/bug.php?id=64109&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64109&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64109&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64109&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64109&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64109&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64109&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64109&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64109&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64109&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64109&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64109&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64109&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64109&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64109&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64109&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64109&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64109&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64109&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64109&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64109&r=mysqlcfg
