#47718 [NEW]: Integers overflow for 64 bit platform
From: vivekanandan8 at yahoo dot com
Operating system: all os
PHP version: Irrelevant
PHP Bug Type: Documentation problem
Bug description: Integers overflow for 64 bit platform
Description:
------------
Documentation for 64 bit platform about integers overflow
Reproduce code:
---------------
---
From manual page: language.types.integer
---
Expected result:
----------------
If PHP encounters a number beyond the bounds of the integer type, it will
be interpreted as a float instead.
This above general rule differs depending on whether a 32 bit or 64 bit
platform is used, which is described in the table below
Platform: 32 bit , Range: -2^31-1 and 2^31-1,Numbers: -2147483647 to
2147483647
Platform: 64 bit , Range: -2^63-1 and 2^63-1,Numbers: -9223372036854775807
to 23372036854775807
<?php
$large_number=9223372036854775807;
var_dump($large_number);
// output: int(9223372036854775807)
$large_number = 9223372036854775808;
var_dump($large_number);
// output: float(9.2233720368548E+18) as 9223372036854775808
//2^64-1 is 18446744073709551615
var_dump(0xffffffffffffffff);
// output: float(1.844674407371E+19) as 18446744073709551615
?>
Actual result:
--------------
No documentation regarding 64 bit platform in online php manual also.i
added these info as add a note even it is not approved. i am interested in
contributing php manual.please do the needful.
--
Edit bug report at http://bugs.php.net/?id=47718&edit=1
--
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=47718&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=47718&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=47718&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=47718&r=fixedcvs
Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47718&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=47718&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=47718&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=47718&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=47718&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=47718&r=support
Expected behavior: http://bugs.php.net/fix.php?id=47718&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=47718&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=47718&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=47718&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47718&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47718&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=47718&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=47718&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=47718&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=47718&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=47718&r=mysqlcfg
Thread (5 messages)
- vivekanandan8 at yahoo dot com