php - Access denied for user localhost -

i following tutorial(http://www.wikihow.com/create-a-secure-login-script-in-php-and-mysql) build login system.

it looks it's working fine now, on login page, there error dont quite understand means , how can affect operation.

( ! ) scream: error suppression ignored ( ! ) warning: mysqli::mysqli() [<a href='mysqli.mysqli'>mysqli.mysqli</a>]:       (28000/1045): access denied user 'sec_user'@'localhost'       (using password: yes) in       c:\wamp\www\uncultured\login copy\includes\db_connect.php on line 3 call stack  #   time    memory  function    location 1   0.0005  370336  {main}( )   ..\login.php:0 2   0.0009  373048  include_once( 'c:\wamp\www\uncultured\login copy\includes\db_connect.php' ) ..\login.php:2 3   0.0012  375688  mysqli->mysqli( )   ..\db_connect.php:3 

i grateful if can point me in right direction, much! cheers

have added privileges in mysql server user "sec_user" ?

something like: grant (insert required privileges here) on yourdatabase.(table allow access to) 'sec_user'@'localhost' identified '(insert desired password here)';

for instance select, update, insert , delete on tables in database: "mydatabase" sec_user on localhost password 'mysecretpassword' be:

grant select,update,insert,delete on mydatabase.* 'sec_user'@'localhost' identified 'mysecretpassword';