I would guess integer overflow. On 2/17/06, Bruce <bvanderw@xxxxxxxxx> wrote: > > I am puzzled by the following code: > > <?php > print "<p>MaxInt=".PHP_INT_MAX; > $AA = -190668411; > $BB = -2181087916; > print "<br>AA=$AA"; > print "<br>BB=$BB"; > $AA = (int)$AA + (int)$BB; > print "<br>AA+BB=$AA"; > ?> > > On some systems, I get: > > MaxInt=2147483647 > AA=-190668411 > BB=-2181087916 > AA+BB=-2338152059 > > On others, I get: > > MaxInt=2147483647 > AA=-190668411 > BB=-2181087916 > AA+BB=1923210969 > > Why the difference? > > Thanks...Bruce > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >
