Select count for each distinct row (mysql and php)

Question

I am using mysql and php.

I have a table with one column. I can show unique rows by:

select distinct id from id_table

This might show<

Answer 1

select id, count(id)
from table
group by id

If only want count of ids, then

select count(id)
from table
group by id

Here is a simple tutorial of group by clause

http://www.w3schools.com/sql/sql_groupby.asp