Connect external database in php - google-app-engine

Question

I am beginner in php as well Google-app engine. I have created a php webpage, I just need this to connect to external MySQL database to log user visit stats.
Under stats.php how can I include("config.php"); also in config.php how to connect:
<?php
// change these variables
$host=("example.com"); //host
$uname="abc";//MySQL username
$pass="Abc#123";//MySQL password
$db="stats"; //MySQL Database
//don't need to change
$con = mysql_connect($host,$uname,$pass);
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db($db, $con);
?>
When I run stats.php I am getting below error on appspot.com
Failed to connect to MySQL: Unable to find the socket transport "tcp" - did you forget to enable it when you configured PHP?
I have also confirmed connectivity to my server from outside host, port 3306 is also opened.
$ mysql -u webadmin –h (server ip) –p
I am not getting proper way to use fetch url, please help.
Thanks.

Answer 1

Unfortunately this won't work (yet). The reason is that the App Engine PHP runtime doesn't currently support sockets. Other App Engine runtimes (Python/Java/Go) support sockets, so it's a safe bet that it'll be added to PHP at some point in the future.

Answer 2

$host="example.com"; // should contain a valid host name or an ip address of the mysql server to which you want to connect
Nothing else needs to be changed, username and password only if required different. You have to make sure that the remote database does allow external connections for that username. Besides, you'd be better off using mysqli_* instead of old deprecated mysql_* extension for MySQL.
$link = mysqli_connect($host,$uname,$pass,$db) or die("Error " . mysqli_error($link));
And under stats.php you can simply include any code file the way you already mentioned:
<?php
include("config.php");
?>

Answer 3

$con = mysql_connect('your_my_sql_servername or IP Address', 'new_user_which_u_created', 'password');
if (!$con) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_select_db('sandsbtob',$con) or die ("could not open db".mysql_error());
and also firewall of the server must be set-up to enable incomming connections on port 3306
Hope this will help you