note 53814 added to function.dechex

Warning for use on 64 bit machines! The Extra length matters! 32bit machine: php -r 'echo dechex(4294967295);' output: ffffffff 64bit machine: php -r 'echo dechex(4294967295);' output: ffffffff so far it is ok. But for slightly bigger numbers: 32bit machine: php -r 'echo dechex(4294967296);' output: 0 64bit machine: php -r 'echo dechex(4294967296);' output: 100000000 note the difference! This is particularly important when converting negative numbers: 64bit machine: php -r 'echo dechex(-1);' output: ffffffffffffffff 32bit machine: php -r 'echo dechex(-1);' output: ffffffff If you want your code to be portable to amd64 or xeons (which are now quite popular with hosting companies) then you must ensure that your code copes with the different length of the result for negative numbers (and the max value, although that is probably less critical). ---- Manual Page -- http://www.php.net/manual/en/function.dechex.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+53814 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+53814&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+53814&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+53814&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+53814&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+53814&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+53814&report=yes Search -- http://master.php.net/manage/user-notes.php