Help with mysql query checking field against array

Hi,
I got a php array:
$a= array(
[0]=>5,
[1]=>2,
[2]=>10
);
I need to get some results from mysql where "id" field is not one of those in array.
mysql_query(" select * from table where some_field='ok' and id!=' values of array ' ");
I am not getting the idea on how to make the query so it's quick and gets me desired results.
Please help.
Thanks

 

$sql = "SELECT * FROM table WHERE some_field='ok' AND id NOT IN(" . implode(",", array_values($a)) . ')';
mysql_query($sql);

 

Thanks for this. I'll try this and let you know
Thanks

 

use list function, its the easiest one
http://php.net/list