note 83631 added to language.operators.arithmetic

It is worth noticing that when working with large numbers, most noticably using the modulo operator, the results depend on your CPU architecture. Therefore, running a decent 64-bit machine will be to your advantage in case you have to perform complex mathematical operations. Here is some example code - you can compare its output on x86 and x86_64 machines: <?php /* tested under PHP 5.2.6-1 with Suhosin-Patch 0.9.6.2 (cli) on both i386 and amd64, Debian lenny/sid */ $a = 2863311530; $b = 256; $c = $a % $b; echo "$c <br />\n"; echo (2863311530 % 256)." <br />\n"; /* directly with no variables, just to be sure */ ?> The code is expected to produce '170' if working correctly (try it in spreadsheet software). ---- Server IP: 82.177.164.100 Probable Submitter: 89.78.254.113 ---- Manual Page -- http://www.php.net/manual/en/language.operators.arithmetic.php Edit -- https://master.php.net/note/edit/83631 Del: integrated -- https://master.php.net/note/delete/83631/integrated Del: useless -- https://master.php.net/note/delete/83631/useless Del: bad code -- https://master.php.net/note/delete/83631/bad+code Del: spam -- https://master.php.net/note/delete/83631/spam Del: non-english -- https://master.php.net/note/delete/83631/non-english Del: in docs -- https://master.php.net/note/delete/83631/in+docs Del: other reasons-- https://master.php.net/note/delete/83631 Reject -- https://master.php.net/note/reject/83631 Search -- https://master.php.net/manage/user-notes.php