$server = 'localhost:8888';
$username = 'root';
$password = 'root';
$database = 'onepixelm';

$connection = mysql_connect($server, $username, $password);
if ($connection) {
  //...
}

HIBAÜZENET:
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) in /Users/balint/Dropbox/Sites/onepixelm/board2.php on line 8

Warning: mysql_connect(): No such file or directory in /Users/balint/Dropbox/Sites/onepixelm/board2.php on line 8