<?php

function tree(&$arr_file, $directory, $dir_name='')

{

    $mydir = dir($directory);

    while($file = $mydir->read())

    {

        if((is_dir("$directory/$file")) AND ($file != ".") AND ($file != ".."))

        {

            tree($arr_file, "$directory/$file", "$dir_name/$file");

        }

        else if(($file != ".") AND ($file != ".."))

        {

            $arr_file[] = "$dir_name/$file";

        }

    }

    $mydir->close();

}

//开始运行

$arr_file = array();

tree($arr_file, "D:/mydir");

var_dump($arr_file);