Question

I have 1 mysql table called colors with rows id and name

1 - yellow
2 - black
3 - red
4 - green
5 - white
6 - blue

How can I get array of IDs if I have, for example, search string

["colors"]=> string(14) "blue,red,white"

Answer 1

http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_find-in-set

select id from tab where find_in_set(name, '$colors') > 0

NB: as per Dan’s comment below, this query doesn’t use indexes and will be slow on a large table. A query with IN is better:

select id from tab where name IN ('blue', 'red', 'white')