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