mysqli_multi_query($link, $wsql)

        if (mysqli_multi_query($link, $wsql)) {
            do {
                if ($result = mysqli_store_result($link)) {
                    mysqli_free_result($result);
                }
            } while (mysqli_more_results($link) && mysqli_next_result($link));
        }

<?php
echo phpinfo();
function w_db_in_w($link, $fk_countrycode, $fk_categoryid, $wmax_grab_date, $wmin_grab_date, $year, $week)
{
    mysqli_query($link, 'SET group_concat_max_len=8192');
    $sql = 'SELECT GROUP_CONCAT(amzid) AS wsum FROM ( SELECT amzid FROM grab_amz_sales_ranking WHERE  countrycode="' . $fk_countrycode . '" AND w_categoryid=' . $fk_categoryid . ' AND grab_amz_date>=' . $wmin_grab_date . '  AND grab_amz_date<=' . $wmax_grab_date . ' AND grab_page_rank<101 ORDER BY w_sale DESC LIMIT 100 ) AS w192';

    $w_amzidlist = db_single_row_single_field_link($link, $sql, 'wsum');

    if (!empty($w_amzidlist)) {
        $sql = 'INSERT INTO sales ranking_week (history_year,history_week,fk_countrycode,fk_categoryid,amzidlist100_amzids) VALUES ( ' . $year . ',' . $week . ',"' . $fk_countrycode . '",' . $fk_categoryid . ',"' . $w_amzidlist . ' ");';
        $w_id = gen_this_insert_id_link($sql, $link);
        $wkey = 'sales ranking_week_id';
        $sql = 'SELECT SUM(w_sale) AS wsum FROM ( SELECT w_sale FROM grab_amz_sales_ranking WHERE  countrycode="' . $fk_countrycode . '" AND w_categoryid=' . $fk_categoryid . ' AND grab_amz_date>=' . $wmin_grab_date . '  AND grab_amz_date<=' . $wmax_grab_date . ') AS w';
        $w_amount_all = db_single_row_single_field_link($link, $sql, 'wsum');
        $wsql = 'UPDATE sales ranking_week SET  amount_all = ' . $w_amount_all . ' WHERE ' . $wkey . '=' . $w_id . ';';
        if ($w_amount_all > 0) {
            for ($w = 100; $w >= 10; $w = $w - 10) {
                $sql = 'SELECT SUM(w_sale) AS wsum FROM ( SELECT w_sale FROM grab_amz_sales_ranking WHERE  countrycode="' . $fk_countrycode . '" AND w_categoryid=' . $fk_categoryid . ' AND grab_amz_date>=' . $wmin_grab_date . '  AND grab_amz_date<=' . $wmax_grab_date . ' AND grab_page_rank<' . ($w + 1) . '  ORDER BY w_sale DESC LIMIT ' . $w . ') AS w';
                $w_res = db_single_row_single_field_link($link, $sql, 'wsum');
                $wsql .= 'UPDATE sales ranking_week SET  amount_' . $w . ' = ' . $w_res . ' WHERE ' . $wkey . '=' . $w_id . ';';
            }
        }
        /*
         * mysqli_multi_query($link,$wsql);
         * WRONG
         * 2016-12-20 15:49:01
PHP Version 5.3.29
         * */
        //
        if (mysqli_multi_query($link, $wsql)) {
            do {
                if ($result = mysqli_store_result($link)) {
                    mysqli_free_result($result);
                }
            } while (mysqli_next_result($link));
        }
    }
}

Strict Standards: mysqli_next_result() [function.mysqli-next-result]: There is no next result set. Please, call mysqli_more_results()/mysqli::more_results() to check whether to call this function/method