missing highlighted snippets

The highlighting result of solr looks like this:

<lst name="highlighting">
  <lst name="hash/node/6">
    <arr name="content">
      <str>First hightlighted snippet.</str>
      <str>Second hightlighted snippet.</str>
      <str>Third hightlighted snippet.</str>
    </arr>
  </lst>
</lst>

The parsing code looks like this:

foreach ($response->highlighting->{$doc->id}->$hl_param as $values) {
  $snippets[$hl_param] = $values;
}

The result is, that the value of $snippets[$hl_param] will be overridden two times and finally contain the "Third highlighted snippet.".

Basically the parsing code need to be something like

foreach ($response->highlighting->{$doc->id}->$hl_param as $value) {
  $snippets[$hl_param][] = $value;
}