Javascript and SQL/PHP

I have hosted my website with A company that uses MySQL.
I tried to connect to my database using the usual php script
....
<?php
mysql_connect (localhost, MyUserName, MyPassword);

mysql_select_db (MyDatabse);
mysql_query ("INSERT INTO addressbook (fname, lname)VALUES 'fname', 'lastname')
");
print ("Thanks for submitting your name.");
?>

Obviously I substituted the values MyUser name .... with my settings.


I emailed my webshsting company and I was told that they use JDBC Connection !!! And I should insert the following string:


"jdbc:mysql://MyDomain.com/MyDomain_com?user=MyUsername&password=MyPassword"

Can Any one tell me how could I connect to MySQL using this connection string?
Where should I insert it?
Can any one rewrite the php script above so that it connects using JDBC...

Any help would be appreciated very much.
Thank you all

wrong group, but I think you'd replace the localhost part with that line...