Re: question on stat function

On Wed, Mar 12, 2014 at 5:53 PM, Jim Lucas <lists@cmsws.com> wrote: > On 03/12/2014 01:48 PM, Jeffry Killen wrote: > >> question on stat function >> from Wikipedia entry for stat function (in c): >> The st_mode field is a bit field. It combines the file access modes and >> also >> indicates any special file type. >> I believe that the entry for stat in php manual references this. >> >> How would you interpret this to determine the files access perms? >> >> (for the sake of custom error handling or whatever) >> > > Their are a couple user contributed notes that describe how to decode this > value from the array output of stat(). > > I ripped this from one of them. > > <?php > > $f=stat('somefile.txt'); > > $ts=array( > 0140000=>'ssocket', > 0120000=>'llink', > 0100000=>'-file', > 0060000=>'bblock', > 0040000=>'ddir', > 0020000=>'cchar', > 0010000=>'pfifo' > ); > > $m = $f['mode']; > > $t=decoct($m & 0170000); // File Encoding Bit > > $str = (array_key_exists(octdec($t),$ts))?$ts[octdec($t)]{0}:'u'; > $str .= (($m&0x0100)?'r':'-'); > $str .= (($m&0x0080)?'w':'-'); > $str .= > (($m&0x0040)?(($m&0x0800)?'s':'x'):(($m&0x0800)?'S':'-')); > $str .= (($m&0x0020)?'r':'-'); > $str .= (($m&0x0010)?'w':'-'); > $str .= > (($m&0x0008)?(($m&0x0400)?'s':'x'):(($m&0x0400)?'S':'-')); > $str .= (($m&0x0004)?'r':'-'); > $str .= (($m&0x0002)?'w':'-'); > $str .= > (($m&0x0001)?(($m&0x0200)?'t':'x'):(($m&0x0200)?'T':'-')); > > echo $str; > > YMMV > > -- > Jim Lucas > > http://www.cmsws.com/ > http://www.cmsws.com/examples/ > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > If the user contributed logic is hard to understand, this example can simplify it for you: http://php.net/fileperms (same logic different method)