Sets the current active database on the server that's associated with the specified link identifier. Every subsequent call to mysql_query will be made on the active database.
The name of the database that is to be selected.
The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect is assumed. If no such link is found, it will try to create one as if mysql_connect had been called with no arguments. If no connection is found or established, an E_WARNING level error is generated.
Returns true on success or false on failure.
For backward compatibility, the following deprecated alias may be used: mysql_selectdb