private function _appendChildren(array &$children, $name, array $_children)
  {
    foreach ($_children as $key => $value) {
      $children[$name . "/" . $key] = $value;
    }
  }
private function _appendChildren(array &$children, $name, array $_children)
  {
    foreach ($_children as $key => $value) {
      $children[$name . "/" . $key] = $value;
    }
  }
private function _appendChildren ( array & $ children , $ name , array $ _children ) { foreach ( $ _children as $ key => $ value ) { $ children [ $ name . "/" . $ key ] = $ value ; } }
Add new children to array

@param array  &$children Children array
@param string $name      Current name
@param array  $_children Children of subtrees

@return null
Add new children to array