Connect with multiple databases using PHP

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How can you connect and transferring data with multiple databases using php.Only using mysql_connect to simultaneously multiple databases to create multiple databases connections.

//**************** CONNECTION -1 **************************
$connection1 = mysql_connect('server1_name', 'mysql_user', 'mysql_password') or die('Could not connect with connection1: ' . mysql_error());
// connect to the database 1
mysql_select_db('database1_name', $connection1) or die('Could not connect with database1: ' . mysql_error());
//**************** CONNECTION -2 **************************
$connection2 = mysql_connect('server2_name', 'mysql_user', 'mysql_password') or die('Could not connect with connection2: ' . mysql_error());
// connect to the database 1
mysql_select_db('database2_name', $connection2) or die('Could not connect with database2: ' . mysql_error());

You can access data with these connections to the databases as following.

// get data from database 1
$SQL1 = "SELECT * FROM users";
$result1 = mysql_query($SQL1,$connection1) or die('Could not execute query with database1: ' . mysql_error());
$row1 = mysql_fetch_array($result1);
print_r($row1);
echo '
';
// get data from database 2
$SQL2 = "SELECT * FROM country";
$result2 = mysql_query($SQL2,$connection2) or die('Could not execute query with database2: ' . mysql_error());
$row2 = mysql_fetch_array($result2);
print_r($row2);

Note: Always is server name as IP Address.If you use localhost, then each queries would not execute.