#30315 [Opn]: big integers don't overflow

ID: 30315 Updated by: derick@php.net Reported By: tokul at users dot sourceforge dot net Status: Open Bug Type: Variables related Operating System: Linux PHP Version: 5.0.2 New Comment: But it's still breaking backward compatibility, and that is also important. IMO this should just work like it did before. Previous Comments: ------------------------------------------------------------------------ [2004-10-05 14:43:30] jorton@php.net PHP never guaranteed that integers larger than 2^31 wrap negative. It has never been true on a 64-bit platform, for example; there, your code will have always printed "3725722773". I don't think this is a PHP bug. ------------------------------------------------------------------------ [2004-10-04 10:03:43] derick@php.net You didn't mention that before ;-) So no, then this is ofcourse a bug. ------------------------------------------------------------------------ [2004-10-04 08:58:11] tokul at users dot sourceforge dot net Have you checked php behaviour in other php versions? I have also tested 4.1.2, 4.3.9 and 5.0.1. This happens only on 5.0.2. I just need to know, if this is a bug or default behaviour in future php versions. ------------------------------------------------------------------------ [2004-10-04 08:39:49] derick@php.net Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Thank you for your interest in PHP. . ------------------------------------------------------------------------ [2004-10-03 21:35:01] tokul at users dot sourceforge dot net Description: ------------ If big number (2500072158) is converted to integer, php 5.0.2 does not overflow and uses max integer value (2147483647). OS details: Linux Debian Sarge PHP compilation details (vanilla php-5.0.2.tar.bz2): ./configure --disable-debug --with-apxs=/somepath/apache/bin/apxs --prefix=/somepath/php --with-config-file-path=/somepath/ --with-pcre-regex --enable-mbstring --enable-session --disable-all --with-gettext=shared,/usr php.ini details: error_reporting=E_ALL display_errors=on register_globals=off asp_tags=on short_tags=off Is this standard future php behaviour or just some error in my config? Reproduce code: --------------- echo (int)0xde120495; Expected result: ---------------- -569244523 Actual result: -------------- 2147483647 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30315&edit=1