Bake Cake MySQL error

If you have come across to warnings like

Warning: mysql_connect(): [2002] No connection could be made because the target machine actively in ...cake\libs\model\datasources\dbo\dbo_mysql.php on line...

PHP Warning: mysql_connect(): No connection could be made because the target machine actively refused it. in ...cake\libs\model\datasources\dbo\dbo_mysql.php on line ... 

And etc. Can try the following solution below:

1. Open php.ini
2. Look for the mysql.default_port, set it to the number accordingly, e.g.
mysql.default_port = 3306