i have 3 fields in my table and the first field is my primary key which is also
auto_increment when i insert to this table the first data that will appear in my table particularly in my first field is 1 then when i insert again it becomes 2 and so on

my question is how can i make the auto_increment table will have the value
that looks like this

value1
value2
value3
....
value20
....
and so on...


i am using phpMyAdmin...
any help please....

you cannot

however, you can always "assemble" this whenever you retrieve data from the table