mysql-insert-返回主键id

 function gen_this_insert_id($insert)
 {
     GLOBAL $link;
     $insert .= ' SELECT LAST_INSERT_ID();';
     if (mysqli_multi_query($link, $insert)) {
         if (mysqli_next_result($link)) {
             if ($result = mysqli_store_result($link)) {
                 $w = mysqli_fetch_row($result);
                 RETURN $w[0];
             }
         }
     }
 }

https://my.oschina.net/fz04003/blog/63327