From: aidevelopment at gmail dot com
Operating system: Linux 2.6.15-26-server
PHP version: 5.2.11
PHP Bug Type: Variables related
Bug description: 1 bit short of an 8 byte integer
Description:
------------
Despite having PHP_INT_MAX set to 8 bytes, It is impossible to have an int
greater than
1000000000000000000000000000000000000000000000000000000000000000.
8 Byte, or 64 bit maximum should be
1111111111111111111111111111111111111111111111111111111111111111.
In my included example, it is clear that when attempting to increase the
value above(by adding 1), simply nothing happens.
Attempting to assign a variable to a number greater than the above number
produces unpredictable results.
Reproduce code:
---------------
<?php
echo "Int Size = ".PHP_INT_SIZE." bytes.<br>";
$status = 0x7FFFFFFFFFFFFFFF;
for($i=0;$i<=4;$i++)
{
printf ("status = '%b'<br>", $status);
$status++;
}
?>
Expected result:
----------------
Int Size = 8 bytes.
status =
'111111111111111111111111111111111111111111111111111111111111111'
status =
'1000000000000000000000000000000000000000000000000000000000000000'
status =
'1000000000000000000000000000000000000000000000000000000000000001'
status =
'1000000000000000000000000000000000000000000000000000000000000010'
status =
'1000000000000000000000000000000000000000000000000000000000000011'
Actual result:
--------------
Int Size = 8 bytes.
status =
'111111111111111111111111111111111111111111111111111111111111111'
status =
'1000000000000000000000000000000000000000000000000000000000000000'
status =
'1000000000000000000000000000000000000000000000000000000000000000'
status =
'1000000000000000000000000000000000000000000000000000000000000000'
status =
'1000000000000000000000000000000000000000000000000000000000000000'
--
Edit bug report at http://bugs.php.net/?id=50080&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=50080&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=50080&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=50080&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=50080&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=50080&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=50080&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=50080&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=50080&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=50080&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=50080&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=50080&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=50080&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=50080&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=50080&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50080&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=50080&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=50080&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=50080&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=50080&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=50080&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=50080&r=mysqlcfg
