用队列的方式解决目录遍历问题

    public function  ($path='.'){
        $queue=array($path);
        while (!empty($queue)) {
            $currentPath=array_shift($queue);
            $currentDir = dir($currentPath);
            while (false !== ($filePath = $currentDir->read())) {
               if( '.' == $filePath || '..' == $filePath ){
                       continue;
               }
               if(is_dir($currentPath.'/'.$filePath)){
                      array_push($queue, $currentPath.'/'.$filePath);
               }
               echo $currentPath.'/'.$filePath."n";
            }
            $currentDir->close();
        }
    }
    
    getFiles('d:/software');
?>