A general single sql query

Question

I have a table like this:

id | roll_no | name
---------------------
 1 |   111   | Naveed
 2 |   222   | Adil
 3 |   333   | Ali 

If I

Answer 1

You will probably always have to explode the Array in PHP and pass the values as a string into the query (sprintf) so you probably can, and should, do all in PHP.

One thing that catches my eye is that you are always using ID's. Are the ID's a unique or primary field? If so just forget about the roll_no as your query will be faster using just ID's.