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

$arr is a php array, to the sql server you need to send a string that will be parsed you need to turn your array in a list like 1, 2, etc..

to do this you can use the function http://php.net/implode

so before running the query try

$arr = implode ( ', ', $arr);