How to use php array with sql IN operator?

Question

I have and array with two values and I want to use it with sql IN operator in select query.

Here is the structure of my table

id comp_id
1   2
2   3
         


        

Answer 1

You need to actually convert your $arr to a string. The simplest way with what you're doing would be to use implode()

$query = 'SELECT * from table Where comp_id IN (' . implode(',', $arr) . ')';

Right now if you echo your query you'll see that rather than the array being in the IN statement, it will just be the word "Array"