PHP Small Code----read sub files or subdirectories under directory

<?php   class RecDir {      protected $rootPath;     protected $opDirectory;   &NB Sp   Const recdir_mixed = ' MIXED ';     Const RECDIR_DIR = ' DIR ';     Const Recdir_file = ' FILE ';       Public $errorMsg = ';     Public $errorNo = 0;       Public function __construct ($rootPath) {        $this->rootpath = $rootPath;         if (Is_dir ($this->rootpath)) {            $this->rootpath = PathInfo ($this->rootpath, Pathinfo_dirname). Directory_separator. PathInfo ($this->rootpath, pathinfo_basename);             $this->opdirectory = Dir ($this->rootpath);        } else {            $this->errormsg = ' The directory you provide does not exist! ';             $this->errorno = 1001;           &nbsp throw new Exception ($this->errormsg, $this->errorno);        }    ,       Private Function Read ($directory, $parentPath, $MODEINF o = ' mixed ', $defaultDir = False, $fullPath = False) {        $dirInfo = array ();     &NBSP ;   while (FALSE!== ($childDirOrFileName = $directory->read ()) {            switch ($modeInfo) {                case self::recdir_mixed:           &NBS P         if ($defaultDir) {                    &NBSP ;   $dirInfo [] = $fullPath? $parentPath. Directory_separator. $childDirOrFileName: $childDirOrFileName;                    } else {            & nbsp           if ($childDirOrFileName!= '. ')&& $childDirOrFileName!= ' ... ') {                            $dirInfo [] = $fullPath ? $parentPath. Directory_separator. $childDirOrFileName: $childDirOrFileName;                                   & nbsp        }                     break;                 case Self::recdir_dir:             & nbsp       if (Is_dir $parentPath. Directory_separator. $childDirOrFileName)) {                        if ($defaultDi R) {                            $dirInfo [] = $fullP Ath? $parentPath. Directory_separator. $childDirOrFileName: $childDirOrFileNaMe                        } else {        & nbsp                   $childDirOrFileName!= '. ' && $childDirOrFileNa Me!= ' ... ') {                                $dirInfo [] = $fullPath? $parentPath. Directory_separator. $childDirOrFileName: $childDirOrFileName;                            }       & nbsp                                   & nbsp }                     break;                 case Self::recdir_file:                     if (Is_file $parentPath. DirecTory_separator. $childDirOrFileName)) {                        $dirInfo [] = $ FullPath? $parentPath. Directory_separator. $childDirOrFileName: $childDirOrFileName;                                   & nbsp     break;                     {        return $dirInfo;    }      /**       * (PHP 5 >= 5.4.0) <br/>       * Get directory Direct subdirectory or direct file information       * @param string $modeInfo [optional]<p>       * Return to directory information in the mode of       * Mixed   return all filename and directory name       * dir     Return all directory name       * file   return Some filename       * </p>       * @param bool $defaultDir [optional]<p>       * Include the default link directory ... And.       * false   not including       * True   including       * </p>   &NBS P   * @param bool $fullPath [optional]<p>       * Whether to return the path information of the child file or directory       * true   is &NB Sp     * False no       * <p>       * @return Array returns an array that records the information in this directory   &NB Sp   *     Public Function getpathdirectdirinfo ($modeInfo = ' mixed ', $defaultDir = False, $fullPath = False) {        return $this->read ($this->opdirectory, $this->rootpath, $modeInfo, $defaultDir, $ FullPath);    }    }  //----------------------------test----------------------------------------- Header ("content-type:text/html; Charset=utf-8 "); try {    $recDir = new RecDir ('./calltemp/');     $dirs = $recDir->getpathdirectdirinfo (' file ', tr UE, TRUE);     Var_dump ($dirs); catch (Exception $ex) {   echo ' in file '. $ex->getfile (). ' The first ' in '. $ex->getline (). ' Line error: '. $ex->getmessage (). ' ('. $ex->getcode (). ')'; }