SQLSTATE[HY000] [1045] Access denied for user ''@'localhost' !!!

hello there.

I have finished my dataBase then I typed the code to connect to the dataBase through using PDO and I include (by include 'connect.php') that file in my index.php. when I try to see the result I have this error :-

" fail :(! SQLSTATE[HY000] [1045] Access denied for user ''@'localhost' (using password: YES) "

This is the Code that I type it to connect to dataBase:-

'SET NAMES utf8');

try{ $con=new PDO($dsn,$pass,$user,$option); $con>setAttribute (PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION); echo "great!"; }

catch(PDOException $e) { echo "fail :(! ". $e->getMessage();} ?>

I have seen heaps of videos on youTube and most of them was edition in "config.Ini.Php" !

Also, if I try to do some codes on CMD rather than phpMyAdmin it don't work...like the following

"after I type mysql -u root; " THEN it show me the welcome screen....!!

but if I type "show DATABASES;" THEN I only got one one result "information_schema" !!

and if I type "CREATE DATABASE PHP;" THEN the result is "access denied for user ' ' @' localhost' to database PHP !! I really don't know what to do and what's going on . please help me in this. MOST IMPORTANT FOR ME IS SOLVE PROBLEM OF THE CONNECTION TO DATABASE

if you guys support through skype then TeamViewr that would be helpful !

I looking forward to hear from you !