Question

Here’s my situation: I need to select all the messages where user_id = x OR y OR z.

I have an array in PHP:

users = ('1', '2', '3')

is there anyway to select all the messages where user_id = one of those values without having a massive query of:

user_id = '1' OR user_id = '2' OR user_id = '3?'

(I need to receive the messages of 100+ people so it would be inefficient)

Thanks

Answer 1

This is easy to do :

$query = "SELECT * FROM table_name WHERE user_id IN('1','2','3')";

Since your value is in array you can use:

$users = array('1', '2', '3');
$user_id = "'" . implode("', '", $users ) . "'";
$query = "SELECT * FROM table_name WHERE user_id IN($user_id)";

Hope this helps.