code: function childCount($ignore_text_comments = false) {
  		if (!$ignore_text_comments) {
  			return count($this->children);
  		} else{
  			$count = 0;
  			//foreach($this->children as &$c) {
  			//	if (!$c->isTextOrComment()) {
  			//		++$count;
  			//	}
  			//}
  
  			foreach(array_keys($this->children) as $k) {
  				if (!$this->children[$k]->isTextOrComment()) {
  					++$count;
  				}
  			}
  			return $count;
  		}
  	}
docs: Number of children in node
  @param bool $ignore_text_comments Ignore text/comments with calculation
  @return int