note 47968 added to ref.filesystem

In response to requiring a list of accessible drive letters available in Windows, I wrote the following routine (following a suggestion from my genius work colleague): <?php $drive_letters = "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"; $drives = explode(" ", $drive_letters); for ($idx = 0; $idx < count($drives); $idx++) { $drive = $drives[$idx] . ":\\"; if (file_exists($drive) or is_dir($drive)) { $acc_drives[] = $drive; } } ?> Note that using both file_exists and is_dir isn't necessary. One or the other is fine. This routine won't, however, recognise mapped network drives. Also note that if PHP already provides this functionality in an existing function I didn't discover it. I can use the results in array acc_drives in the opendir function to get a directory listing of that drive. This code isn't supposed to be perfect, just a guide to others trying to achieve the same thing. ---- Manual Page -- http://www.php.net/manual/en/ref.filesystem.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+47968 Delete -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+47968&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+47968&report=yes Search -- http://master.php.net/manage/user-notes.php