note 106840 added to function.scandir

Tweaking donovan dot pp at gmail dot com's excellent submission that avoids recursion and appears to be 50% faster: <?php // sample usage $filesonlyflag=true; $fara=dir_tree("/program files", true); echo "filecount: ".count($fara)."<br>"; function dir_tree($dir, $filesonlyflag=false) { // TODO: SCANDIR_SORT_NONE not available until PHP 5.4 so // just allow ascending sort $SCANDIR_SORT_ASCENDING=0; // init return array $fileara=array(); // init stack of directories to traverse $stack[]=$dir; // loop until nothing is on the stack while ($stack) { // get latest directory added to stack and remove it from stack $thisdir=array_pop($stack); // read this directory's files and process them if there are any // ignore any "Access is denied. (code: 5)" or "failed to open dir: No such file or directory" or "(errno 2): No such file or directory" errors and move on if ($dircont=@scandir($thisdir, $SCANDIR_SORT_ASCENDING)) { // set index to $dircont $i=0; // iterate each file or directory in $dircont while ($i < count($dircont)) { // ignore . and .. if ($dircont[$i] !== '.' && $dircont[$i] !== '..') { // set full file/directory path $thisfileordir="{$thisdir}/{$dircont[$i]}"; // see if it's a file if (is_file($thisfileordir)) { // append it to return array $fileara[]=$thisfileordir; } else { // it's a directory // see if caller wants directories, too if (!$filesonlyflag) { // append this directory also to return array // add a trailing / so caller can detect difference between file and directory $fileara[]=$thisfileordir."/"; } // add this directory to stack $stack[]=$thisfileordir; } } // next element in $dircont $i++; } } } // done return $fileara; } ?> Change log: optional parameter to return files only (defaults to files and directories) $path renamed and initialized as an array @scandir to suppress notices SCANDIR_SORT_NONE should be faster when available elseif (is_dir($x)) clause removed (if it's not a file then it must be a directory, right?) added trailing / to directories so caller can tell the difference between a file and a directory Apologies: Please remove if this is deemed "Code collaboration or improvements." For too many/obvious/PHP newbie code comments. ---- Server IP: 192.41.42.26 Probable Submitter: 98.156.119.140 ---- Manual Page -- http://www.php.net/manual/en/function.scandir.php Edit -- https://master.php.net/note/edit/106840 Del: integrated -- https://master.php.net/note/delete/106840/integrated Del: useless -- https://master.php.net/note/delete/106840/useless Del: bad code -- https://master.php.net/note/delete/106840/bad+code Del: spam -- https://master.php.net/note/delete/106840/spam Del: non-english -- https://master.php.net/note/delete/106840/non-english Del: in docs -- https://master.php.net/note/delete/106840/in+docs Del: other reasons-- https://master.php.net/note/delete/106840 Reject -- https://master.php.net/note/reject/106840 Search -- https://master.php.net/manage/user-notes.php