Bug #51274 [Opn->Fbk]: Integer overflow does not cast as float

Edit report at http://bugs.php.net/bug.php?id=51274&edit=1 ID: 51274 Updated by: aharvey@php.net Reported by: cduncan at regatta dot com Summary: Integer overflow does not cast as float -Status: Open +Status: Feedback Type: Bug Package: *General Issues Operating System: Linux PHP Version: 5.3.2 New Comment: I can't really see any way this could occur other than your server having a 64-bit install of Linux on it. What distribution is the server running, what does "uname -m" output, and what does configure say the host and target system types are? (Side note: the manual could admittedly be a bit clearer on this; although the fact integer size differs on different platforms is mentioned, it might be useful if the Integer Overflow section actually reiterated it. I'll see about updating it.) Previous Comments: ------------------------------------------------------------------------ [2010-03-26 06:21:39] ssufficool at gmail dot com 64 bit ubuntu 10.04 PHP 5.3 SVN: int(2147483647) int(2147483648) 32 bit machine and OS PHP 5.2.10: int(2147483647) float(2147483648) ------------------------------------------------------------------------ [2010-03-11 19:05:31] cduncan at regatta dot com 64bit machine, 32bit OS. Also, wouldn't we expect a 64bit to return: int(2147483647) int(2147483648) ------------------------------------------------------------------------ [2010-03-11 17:58:30] jani@php.net Could it possibly be that you're running this on 64bit machine? :) ------------------------------------------------------------------------ [2010-03-11 15:15:38] cduncan at regatta dot com Description: ------------ The manual (http://php.net/manual/pl/language.types.integer.php) includes the following segment to cover integer overflow: <?php $large_number = 2147483647; var_dump($large_number); // output: int(2147483647) $large_number = 2147483648; var_dump($large_number); // output: float(2147483648) ?> However when I try this on my recently upgraded server they are both output as int(2147483647) Test script: --------------- $large_number = 2147483647; var_dump($large_number); $large_number = 2147483648; var_dump($large_number); Expected result: ---------------- I expect to see; int(2147483647) float(2147483648) As I do on my box running 5.3.1 Actual result: -------------- int(2147483647) int(2147483647) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51274&edit=1