php sql Мультизапрос

function get_sql() { $sql = new mysqli( 'localhost', '', '', '' ); if ($sql->connect_errno) { print_r([$sql->connect_errno, $sql->connect_error]); exit(); } $sql->set_charset('utf8'); return $sql; } function query_sql_select($request) { $result = []; $sql = get_sql(); if ($query = $sql->multi_query($request)) { do { if ($res = $sql->store_result()) { while ($array = $res->fetch_array(MYSQLI_ASSOC)) { $result[] = $array; } $res->free(); } } while ($sql->more_results() && $sql->next_result()); } else { // Обработка ошибки SQL print_r([$sql->errno, $sql->error]); } $sql->close(); return $result; }