Improve Typo3 Backend Search

    /**
     * Improve fe_users search with Fulltext MySQL search to match names in first_name and last_name
     * e.g "jenni mair" will match rows with "jennifer" as first_name and "mair" as last_name
     * @param array $queryParts
     * @param AbstractDatabaseRecordList $parentObject
     * @param string $table
     * @param int $id
     * @param string $addWhere
     * @param string $fieldList
     * @param array $_params
     */
    public function makeQueryArray_post(&$queryParts, $parentObject, $table, $id, $addWhere, $fieldList, $_params)
    {
        if ($table === "fe_users" && !empty($parentObject->searchString)) {
            $searchTokens = String::multiExplode(array(" ", ",", ":", "."), trim($parentObject->searchString));
            if (count($searchTokens) == 2) {
                /** @var DatabaseConnection $db */
                $db = $GLOBALS["TYPO3_DB"];
                $where = trim($queryParts["WHERE"]);
                //Last character is a closing bracket
                if (substr($where, -1) === ")") {
                    //Remove last closing bracket so to add another search condition
                    $where = substr($where, 0, -1);
                    //Build Fulltext search
                    $where .= " OR MATCH(first_name,last_name) "
                        . "AGAINST('+" . $db->quoteStr($searchTokens[0], $table)
                        . "* +"
                        . $db->quoteStr($searchTokens[1], $table)
                        . "*' IN BOOLEAN MODE)";
                    //Add removed bracket
                    $where .= ")";
                    $queryParts["WHERE"] = $where;
                }
            }
        }
    }