VESELOV.SUMY.UA

Сортируем массив по деревьям

function crazysort(&$comments, $parentComment = 0, $level = 0, $count = null){
  if (is_array($comments) && count($comments)){
    $return = array();
    if (is_null($count)){
      $c = count($comments);
    }else{
      $c = $count;
    }
    for($i=0;$i<$c;$i++){
      if (!isset($comments[$i])) continue;
      $comment = $comments[$i];
      $parentId = $comment['parent_id'];
      if ($parentId == $parentComment){
        $comment['level'] = $level;
        $commentId = $comment['id'];
        $return[] = $comment;
        unset($comments[$i]);
        while ($nextReturn = crazysort($comments, $commentId, $level+1, $c)){
          $return = array_merge($return, $nextReturn);
        }
      }
    }
    return $return;
  }
  return false;
}