using PDO to connect Mysql database not working-Collection of common programming errors

Apache version: Apache/2.2.21 (Win32) PHP/5.3.10

in the php.ini file, I un-commented the line: extension=php_mysql.dll

2a. phpinfo function showed ‘Loaded Configuration File’ location is C:\php\php.ini

2b. PDO driver information showed by phpinfo function: under PDO section: PDO drivers–>Mysql (enabled) under PDO Driver for MySQL section: client API version–>mysqlnd 5.0.8-dev – 20102224 – $Revision: 321634 $ (enabled)

Code I used to connection to the database

$db_user = "uid";
$db_pass = "pd";

 
$db_connect = new PDO('mysql:host=locahost; dbname=practice; charset=UTF-8', $db_user, $db_pass); if($db_connect){ print "connected to the db " . "
"; }

 
else{ print "error connects to the db. " . mysql_error(); }

 
?>

The error message I received: