note 124347 added to function.time-sleep-until

if you for some reason need a constant-time implementation of realpath(), try <?php function realpath_constant_time(string $path, float $target_seconds, bool &$constant_time_success = null){ $start_time=microtime(true); $ret=realpath($path); $constant_time_success = @time_sleep_until($start_time+$target_seconds); return $ret; } ?> for example, a realtime that always uses exactly 1 millisecond (should be more than enough for SSD-based servers, perhaps rotating harddrive based servers may need something closer to 10 milliseconds, i don't know): <?php realpath_constant_time("/path/to/../to/file.txt",0.001,$constant_time_success); ?> and you can use $constant_time_success to see if you needed more time (and thus failed to do realpath() in constant-time), or if you succeeded. ---- Server IP: 208.43.231.9 Probable Submitter: 185.85.3.168 (proxied: 46.46.192.207) ---- Manual Page -- http://php.net/manual/en/function.time-sleep-until.php Edit -- https://master.php.net/note/edit/124347 Del: integrated -- https://master.php.net/note/delete/124347/integrated Del: useless -- https://master.php.net/note/delete/124347/useless Del: bad code -- https://master.php.net/note/delete/124347/bad+code Del: spam -- https://master.php.net/note/delete/124347/spam Del: non-english -- https://master.php.net/note/delete/124347/non-english Del: in docs -- https://master.php.net/note/delete/124347/in+docs Del: other reasons-- https://master.php.net/note/delete/124347 Reject -- https://master.php.net/note/reject/124347 Search -- https://master.php.net/manage/user-notes.php