[RESOLVED] Help sorting an array

[mrbaseball34]

I am parsing an IMAP inbox and extracting the attachments, I add the attachment filename to an array like this:

  $extracted['file_uploads/'.$user_id.'_'.$path_parts['filename'].'_'.$md.'.'.$path_parts['extension']] = $user_id

($user_id is a value that corresponds to the email account that the message is from)

Now, what I need to do before iterating through this array and handling the attachments, is to sort the array by user_id AND filename (DESC)

This is because, for certain users, the files may not be extracted in a particular order but and they must be handled in the correct order.

How would I do that?

[DaveRandom]

create a multi-level array and sort them on a per-user basis:

$extracted[$user_id][] = 'file_uploads/'.$user_id.'_'.$path_parts['filename'].'_'.$md.'.'.$path_parts['extension'];

// Add more attachments to they array here

// Sort by username (this may not be necessary)
ksort($extracted);

// Loop through user id's
foreach ($extracted as $user_id => $attachments) {
  // Sort by path
  sort($attachments);
  // Loop through attachments for this user
  foreach ($attachments as $attachment_path) {
    // Do stuff here
  }
}

[mrbaseball34]

Thanks, Dave.