group concat - How group_concate Mysql Select in one query -

my mysql query is:

select products_id, options_id, options_values_id products_options po, products_attributes pa pa.options_id=po.products_options_id , po.products_options_name '%velikost%' , po.language_id=7 group products_id, options_values_id 

and gives output:

products_id options_id options_values_id     3   3501    13227 3   3501    13230 4   3501    13226 4   3501    13227 4   3501    13230 4   3501    13231 5   3501    13226 5   3501    13227 5   3501    13230 5   3501    13231 6   3501    13226 6   3501    13227 6   3501    13230 6   3501    13231 

and wish have output this:

3   3501 '13227, 13230' 4   3501 '13226, 13227, 13230, 13231' 5   3501 '13226, 13227, 13230, 13231' 6   3501 '13226, 13227, 13230, 13231' 

i trying query group_concat

select products_id, options_id, group_concat( options_values_id ) products_options po, products_attributes pa pa.options_id = po.products_options_id , po.products_options_name '%velikost%' , po.language_id =7 group products_id, options_values_id 

but returns:

products_id options_id group_concat(options_values_id)   3   3501    13227,13227,13227 3   3501    13230,13230,13230 4   3501    13226,13226,13226 4   3501    13227,13227,13227 4   3501    13230,13230,13230 4   3501    13231,13231,13231 5   3501    13226,13226,13226 5   3501    13227,13227,13227 5   3501    13230,13230,13230 5   3501    13231,13231,13231 6   3501    13226,13226,13226 6   3501    13227,13227,13227 6   3501    13230,13230,13230 6   3501    13231,13231,13231 

can tell me i'm doing wrong? thanks

try this.

select products_id, options_id, group_concat( options_values_id ) products_options po, products_attributes pa pa.options_id = po.products_options_id , po.products_options_name '%velikost%' , po.language_id =7 group products_id,options_id;