php小代码目录下读取子文件或子目录

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 = '您提供的目录不存在！';            $this->errorNo = 1001;            throw new Exception($this->errorMsg, $this->errorNo);        }    }    private function read($directory, $parentPath, $modeInfo = 'mixed', $defaultDir = false, $fullPath = false) {        $dirInfo = array();        while (FALSE !== ($childDirOrFileName = $directory->read())) {            switch ($modeInfo) {                case self::RECDIR_MIXED:                    if ($defaultDir) {                        $dirInfo[] = $fullPath ? $parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName : $childDirOrFileName;                    } else {                        if ($childDirOrFileName != '.' && $childDirOrFileName != '..') {                            $dirInfo[] = $fullPath ? $parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName : $childDirOrFileName;                        }                    }                    break;                case self::RECDIR_DIR:                    if (is_dir($parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName)) {                        if ($defaultDir) {                            $dirInfo[] = $fullPath ? $parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName : $childDirOrFileName;                        } else {                            if ($childDirOrFileName != '.' && $childDirOrFileName != '..') {                                $dirInfo[] = $fullPath ? $parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName : $childDirOrFileName;                            }                        }                    }                    break;                case self::RECDIR_FILE:                    if (is_file($parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName)) {                        $dirInfo[] = $fullPath ? $parentPath . DIRECTORY_SEPARATOR . $childDirOrFileName : $childDirOrFileName;                    }                    break;            }        }        return $dirInfo;    }     /**      * (PHP 5 >= 5.4.0)
      * 得到目录下的直接子目录或直接子文件信息      * @param string $modeInfo[可选]
      * 返回目录下信息的模式      * mixed  返回所有的文件名及目录名      * dir    返回所有的目录名      * file   返回所有的文件名      * 
      * @param bool $defaultDir[可选]
      * 是否包括默认的链接目录..和.      * false  不包括      * true   包括      * 
      * @param bool $fullPath[可选]
      * 是否返回子文件或目录的路径信息      * true  是      * false 否      * 
      * @return array 返回一个数组，记录了该目录下的信息      */    public function getPathDirectDirInfo($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 = $recDir->getPathDirectDirInfo('file', true, true);    var_dump($dirs);} catch (Exception $ex) {    echo '在文件【' . $ex->getFile() . '】中的第' . $ex->getLine() . '行报错：' . $ex->getMessage() . '(' . $ex->getCode() . ')';}