laravel5.1-The Bulk entry function of PHP real estate input System

Now there is a system, need to enter the bulk of the real estate information.

This is roughly the logic:

For example, the building number for the A1 of the building, the building has 20 floors, 15 rooms per floor, then the database into a batch of 20*15=300 rooms.
The system will automatically give the room number, 101 is 1 floor 01 room, 102 is 1 floor 02 room .... And so on

So here's the problem!

How can I let the system know that the room on the 1 floor is only 115 to end, then 2 floor is 201-215 rooms, 3 floor is 301-315 room. So until 2015, all the rooms have been entered.

Please give us a thought ~ ~ I suddenly shorted out

Reply content:

Now there is a system, need to enter the bulk of the real estate information.

This is roughly the logic:

For example, the building number for the A1 of the building, the building has 20 floors, 15 rooms per floor, then the database into a batch of 20*15=300 rooms.
The system will automatically give the room number, 101 is 1 floor 01 room, 102 is 1 floor 02 room .... And so on

So here's the problem!

How can I let the system know that the room on the 1 floor is only 115 to end, then 2 floor is 201-215 rooms, 3 floor is 301-315 room. So until 2015, all the rooms have been entered.

Please give us a thought ~ ~ I suddenly shorted out

Weak and weak to say that the cycle is not?

        for($i=1;$i<21;$i++){            for($j=1;$j<16;$j++){                printf("%d%'.02d\n", $i,$j);            }            echo '
';        }

