PHP遍历目录下的全部文件

 1 function dirTree($directory) {
 2     if (empty($directory)) {
 3         return;
 4     }
 5     $dir = dir($directory);
 6     $arr = [];
 7     $i = 1;
 8     while ($file = $dir->read()) {
 9         echo ‘-->‘;
10         if ((is_dir("$directory/$file")) && ($file != ‘.‘) && ($file != ‘..‘)) {
11             $i++;
12             echo PHP_EOL . "第{$i}级目录：" . "$directory/$file" . PHP_EOL;;
13             dirTree("$directory/$file");
14         } else {
15             echo $file . PHP_EOL;
16         }
17     }
18 }
19 
20 $directory = "C:\Users\Yun\Downloads\app-master\config";
21 echo "第1级目录：" . "$directory" . PHP_EOL;