#42792 [Opn->Bgs]: bitwise bug

ID: 42792 Updated by: scottmac@php.net Reported By: yy at jjxx dot com -Status: Open +Status: Bogus Bug Type: Math related Operating System: FreeBSD 6.2 PHP Version: 5.2.4 New Comment: 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. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. The integer type in PHP is a 32-bit signed integer, you can use the PHP_INT_MAX constant to check the size available on your system. Previous Comments: ------------------------------------------------------------------------ [2007-09-28 19:11:33] yy at jjxx dot com Description: ------------ ./configure --with-apxs=/usr/local/apache/sbin/apxs --disable-debug --with-xml --with-gd --with-iconv --prefix=/usr/local/php --with-jpeg-dir --with-png-dir --with-ttf --with-freetype-dir --enable-gd-native-ttf --disable-posix --enable-mbstring --with-pgsql --with-config-file-path=/usr/local/php/lib --with-curl --enable-bcmath Reproduce code: --------------- echo( -4738698913 ^ 43814 ); echo "\n"; echo decbin(-4738698913); Expected result: ---------------- -443704711 11100101100011010011000101011111 Actual result: -------------- -2147439834 10000000000000000000000000000000 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=42792&edit=1