note 105213 added to function.dechex

jbleau algorithm is right, but it still uses 32 bit integers so that overflow will happen just like in dechex. All operations must be done using BCMath functions. Here is a correct version: <?php # Replacement for standard PHP function dechex. It supports much bigger values. function dec2hex($dec) { $h = array(0 => 0, 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 'A', 11 => 'B', 12 => 'C', 13 => 'D', 14 => 'E', 15 => 'F' ); $hex = ''; do { # We could also use dechex here instead of the $h array, # but then we would need strtoupper as well. $hex = $h[bcmod($dec, 16)] . $hex; $dec = bcdiv($dec, 16, 0); } while (bccomp($dec, 1) != -1); # That is $dec >= 1 return $hex; } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 92.27.17.145 ---- Manual Page -- http://www.php.net/manual/en/function.dechex.php Edit -- https://master.php.net/note/edit/105213 Del: integrated -- https://master.php.net/note/delete/105213/integrated Del: useless -- https://master.php.net/note/delete/105213/useless Del: bad code -- https://master.php.net/note/delete/105213/bad+code Del: spam -- https://master.php.net/note/delete/105213/spam Del: non-english -- https://master.php.net/note/delete/105213/non-english Del: in docs -- https://master.php.net/note/delete/105213/in+docs Del: other reasons-- https://master.php.net/note/delete/105213 Reject -- https://master.php.net/note/reject/105213 Search -- https://master.php.net/manage/user-notes.php