note 92144 added to function.chmod

Another converter from 'rwx' mode to octal, but considering the setuid/setgid and sticky bits, too. Also the reverse function, converts from octal to 'rwx' mode. Both ignore the leading 'd' or '-' since no directory nor file information is provided. <?php function ModeRWX2Octal($Mode_rwx) { // enter rwx mode, e.g. 'drwxr-sr-x' if ( ! preg_match("/[-d]?([-r][-w][-xsS]){2}[-r][-w][-xtT]/", $Mode_rwx) ) die("wrong <TT>-rwx</TT> mode in ModeRWX2Octal('<TT>$Mode_rwx</TT>')"); $Mrwx = substr($Mode_rwx, -9); // 9 chars from the right-hand side $ModeDecStr = (preg_match("/[sS]/",$Mrwx[2]))?4:0; // pick out sticky $ModeDecStr .= (preg_match("/[sS]/",$Mrwx[5]))?2:0; // _ bits and change $ModeDecStr .= (preg_match("/[tT]/",$Mrwx[8]))?1:0; // _ to e.g. '020' $Moctal = $ModeDecStr[0]+$ModeDecStr[1]+$ModeDecStr[2]; // add them $Mrwx = str_replace(array('s','t'), "x", $Mrwx); // change execute bit $Mrwx = str_replace(array('S','T'), "-", $Mrwx); // _ to on or off $trans = array('-'=>'0','r'=>'4','w'=>'2','x'=>'1'); // prepare for strtr $ModeDecStr .= strtr($Mrwx,$trans); // translate to e.g. '020421401401' $Moctal .= $ModeDecStr[3]+$ModeDecStr[4]+$ModeDecStr[5]; // continue $Moctal .= $ModeDecStr[6]+$ModeDecStr[7]+$ModeDecStr[8]; // _ adding $Moctal .= $ModeDecStr[9]+$ModeDecStr[10]+$ModeDecStr[11]; // _ triplets return $Moctal; // returns octal mode, e.g. '2755' from above. } function ModeOctal2rwx($ModeOctal) { // enter octal mode, e.g. '644' or '2755' if ( ! preg_match("/[0-7]{3,4}/", $ModeOctal) ) // either 3 or 4 digits die("wrong octal mode in ModeOctal2rwx('<TT>$ModeOctal</TT>')"); $Moctal = ((strlen($ModeOctal)==3)?"0":"").$ModeOctal; // assume default 0 $Mode3 = substr($Moctal,-3); // trailing 3 digits, no sticky bits considered $RWX = array ('---','--x','-w-','-wx','r--','r-x','rw-','rwx'); // dumb,huh? $Mrwx = $RWX[$Mode3[0]].$RWX[$Mode3[1]].$RWX[$Mode3[2]]; // concatenate if (preg_match("/[1357]/", $Moctal[0])) $Mrwx[8] = ($Mrwx[8]=="-")?"T":"t"; if (preg_match("/[2367]/", $Moctal[0])) $Mrwx[5] = ($Mrwx[5]=="-")?"S":"s"; if (preg_match("/[4567]/", $Moctal[0])) $Mrwx[2] = ($Mrwx[2]=="-")?"S":"s"; return $Mrwx; // returns e.g. 'rw-r--r--' or 'rwxr-sr-x' } ?> following test code returns the results below <?php $Mode = "-rw-rw-r--"; echo "<BR>ModeRWX2Octal(<TT>$Mode) -&gt;</TT> ".ModeRWX2Octal($Mode)."\n"; $Mode = "drwxr-sr-x"; echo "<BR>ModeRWX2Octal(<TT>$Mode) -&gt;</TT> ".ModeRWX2Octal($Mode)."\n"; $Mode = "644"; echo "<BR>ModeOctal2rwx($Mode) <TT>-&gt; ".ModeOctal2rwx($Mode)."</TT>\n"; $Mode = "2755"; echo "<BR>ModeOctal2rwx($Mode) <TT>-&gt; ".ModeOctal2rwx($Mode)."</TT>\n"; ?> ModeRWX2Octal(-rw-rw-r--) -> 0664 ModeRWX2Octal(drwxr-sr-x) -> 2755 ModeOctal2rwx(644) -> rw-r--r-- ModeOctal2rwx(2755) -> rwxr-sr-x ---- Server IP: 62.2.182.223 Probable Submitter: 144.85.145.249 ---- Manual Page -- http://www.php.net/manual/en/function.chmod.php Edit -- https://master.php.net/note/edit/92144 Del: integrated -- https://master.php.net/note/delete/92144/integrated Del: useless -- https://master.php.net/note/delete/92144/useless Del: bad code -- https://master.php.net/note/delete/92144/bad+code Del: spam -- https://master.php.net/note/delete/92144/spam Del: non-english -- https://master.php.net/note/delete/92144/non-english Del: in docs -- https://master.php.net/note/delete/92144/in+docs Del: other reasons-- https://master.php.net/note/delete/92144 Reject -- https://master.php.net/note/reject/92144 Search -- https://master.php.net/manage/user-notes.php