function autoSuggestState($keyWord)
{
    $autosuggestArray = array();
    $url = SolrServer::getAutoSuggestStateUrl();
    $url = $url . "?q=" . urlencode($keyWord) . "&wt=json";
    $content = file_get_contents($url);
    if ($content) {
        $jsonIterator = new RecursiveIteratorIterator(new RecursiveArrayIterator(json_decode($content, TRUE)), RecursiveIteratorIterator::SELF_FIRST);
        foreach ($jsonIterator as $key => $val) {
            if (strcmp($key, "suggestion") == 0) {
                $autosuggestArray = $val;
            }
        }
    }
    return $autosuggestArray;
}