[PHP-MYSQL]查询报告

Question

I need help to deliver this to my client. He insisted that the format of the inventory report should be like this:

While my inventory table in mysql is like this:

Basically he wants the application to group the inventory by item name and color then for the quantity column he want the application to show it in one column containing the size printed depend on how much the quantity is. So if the inventory table says we have 4 red nike shoes size 42 and 3 red nike shoes size 41 then it will be printed " 41 41 41 42 42 42 42" in this column.

I hope i explained it well,please see my inventory table and the report above for detail.

I need advise on how to do this properly, can i do this using only sql query or should i combine it with php code as well?

Thanks for the help

Warm Regards

Answer 1

I think you need to first use the query:

select Item,Color,GROUP_CONCAT(Size) as SIZE,GROUP_CONCAT(Qty) as Qty from --tablename-- group by Item,Color

Then use php while loop to get your result

while($num=$result){
$item=$num['Item'];
$Color=$num['Color'];
$size=explode(",",$num['SIZE']);
$size_show="";
$qty=$num['Qty'];
$qty1=explode(",",$qty);
foreach($size as $key=>$val){
$qty2=$qty1[$val];
$k=1;
while($k<=$qty2){
$size_show.="".$val." ";
$k++;
}

}

echo $size_show;
}

Please note that i have given only the idea, and have not tested the code