writing a query from an array of ids

[Gmunky]

hello. I was wondering if anyone knows a good way to write a query when you have a list of primary keys. 
for intance, if I have a table 'User' with id (primary key) ,fname and lname for the attributes, and I want to print out the fname and lname of all the users that matches my array of ids.

id[array] = (1,2,3,4,5,7,etc.)  // i want to print out the names that have these ids

USER
--------
id | fname | lname
------------------
1    bob      barker
2    jo        blo
3    james    blunt
4    ..          ..
5    ..          ..
6    ..          ..
7    ..          ..

thank you for all your help!

[artacus]

Implode your array into a string then use.

SELECT *
FROM user WHERE id IN (1,2,3,4,5,7)

[fenway]

And quote your IN() values for good measure.