Moving MySQL from localhost to remote server - php

Question

I’ve just finished writing a website which is working very well on my local server (xampp).
The following is my connection database definitions for the local server:
<?php
$host="localhost";
$username="root";
$password="1234";
$db_name="partnership";
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
?>
I’ve loaded my files successfully and put them on the remote server (www.mydomain.com) and I’ve created the relevant database ‘partnership’ (successfully imported all Tables from phpMySQL local server to the remote server).
I can view the website (www.mydomain.com) but with no connection to the database (MySQL).
The error message is of course "cannot connect".
I’ve changed $host="localhost" to $host=”www.mydomain.com” but still getting the same error message.
Any assistance on the above issue would be greatly appreciated.

Answer 1

Shouldn't you still use localhost as $host if you're trying to connect via the application? The script is on the same server as the DB.

Answer 2

If you are using cPanel, when you create the MySQL table, make sure you assign your user to it (trivial, I know, but Ive forgotten about it a few times myself.)
If your script is running from your remote server, just stick with localhost. Will work fine.
Last, my only suggestion until a better answer is said, try using
$host = 'localhost';
$user = 'username'; // Im pretty sure your username isn't root.
$pass = '1234';
$db = 'partnership';
/* Alot of hosts like to append your cPanel login to your db and username fields.
Check to see what your table is. It might actually be 'youruser_partnership' */
$mysqli = new mysqli($host, $user , $pass, $db);
if (mysqli_connect_error()) {
die('Connect Error (' . mysqli_connect_errno() . ') ' . mysqli_connect_error());
}
If your host supports mysqli (most do). If not, when you do your die statement, still use die(mysql_error()); to get the exact error. It will more than likely be your username/password you created and assigned to your database

Answer 3

Ah, this is always the most annoying part of the process. Try this and see if it works:
$host="127.0.0.1"; // "localhost" should work, but don't count on it
$username="user"; // username you use to log into phpMyAdmin
$password="password"; // password you use to log into phpMyAdmin
$db_name="dbname"; // database you want to connect to
You'll need to have created this user/password pair and given them the appropriate permissions to access the database. Also note that the mysql PHP functions are deprecated and should not be used. PDO or mysqli are the preferred ones going forward.