遍历文件夹下的所有文件和文件夹-php

function get_dir_info($path){
 ???$handle = opendir($path);//打开目录返回句柄
 ???while(($content = readdir($handle))!== false){
 ???????$new_dir = $path . DIRECTORY_SEPARATOR . $content;
 ???????if($content == ‘..‘ || $content == ‘.‘){
 ???????????continue;
 ???????}
 ???????if(is_dir($new_dir)){
 ???????????echo "<br>目录：".$new_dir . ‘<br>‘;
 ???????????get_dir_info($new_dir);
 ???????}else{
 ???????????echo "文件：".$path.‘:‘.$content .‘<br>‘;
 ???????}
 ???}
}
get_dir_info($dir);