create db

connect to a db

create a table

insert row

execute a query

execute a query with variables

ajax variables to query

loop over results

php + sql : execute a query

sql : group by

sql : inner join

sql : get record with max value from group (using inner join & group by)

sql : insert into

sql : loop over results

file_get_contents("php://input") vs $_POST

print_r() vs echo

powershell notes