I am using

PHP Code:

mysql_connect("localhost", "user", "passwod"); 


function to connect database.
I want to use database on another server and it should be secured connection (SSL).

How can I achieve it? I am newbie in PHP-MYSQL.

http://us3.php.net/function.mysql-connect

Take a look at the fifth parameter for mysql_connect. Pass MYSQL_CLIENT_SSL to use ssl. I believe that the fourth parameter should be set to false and you will also have to specify the IP of the server the database is located on.

PHP Code:

mysql_connect("IP:PORT", "user", "pass", false, MYSQL_CLIENT_SSL); 


I think that will do it, so long as your sql database is set up for ssl

As null pointer said, but don't forget neither that you have to specify from where you want to connect into mysql too.
Default is "localhost" only, but you can give an ip, or a reverse dns name

grant all on dbName.* to username@client_machine_ip with password 'mySuperSecretPassword';

Otherwise, you will have a secured channel, but the server will refuse the connection of your user.