Question

I am trying to list files in subdirectories and write these lists into separate text files.

I managed to get the directory and subdirectory listings and even to write all the files into a text file.

I just don’t seem to manage to burst out of loops I am creating. I either end up with a single text file or the second+ files include all preceeding subdirectories content as well.

What I need to achieve is:

• dir A/AA/a1.txt,a2.txt >> AA.log
• dir A/BB/b1.txt,b2.txt >> BB.log
• etc.

Hope this makes sense.

I’ve found the recursiveDirectoryIterator method as described in PHP SPL RecursiveDirectoryIterator RecursiveIteratorIterator retrieving the full tree being great help. I then use a for and a foreach loop to iterate through the directories, to write the text files, but I cannot break them into multiple files.

Answer 1

Most likely you are not filtering out the directories . and .. .

$maindir=opendir('A');
if (!$maindir) die('Cant open directory A');
while (true) {
  $dir=readdir($maindir);
  if (!$dir) break;
  if ($dir=='.') continue;
  if ($dir=='..') continue;
  if (!is_dir("A/$dir")) continue;
  $subdir=opendir("A/$dir");
  if (!$subdir) continue;
  $fd=fopen("$dir.log",'wb');
  if (!$fd) continue;
  while (true) {
    $file=readdir($subdir);
    if (!$file) break;
    if (!is_file($file)) continue;
    fwrite($fd,file_get_contents("A/$dir/$file");
  }
  fclose($fd);
}