MariaDB > PHP connection

Connection to MySQL/MariaDB for PHP

MySQL and MariaDB are highly popular open source databases, used by developers all over the world. Follow the instruction below to learn how to connect your PHP application, hosted within Cloudjiffy Cloud, to one of this DB servers.

Environment Creation

1. Log into your Cloudjiffy dashboard.

2. Create an environment with MySQL or MariaDB database server (both are available within the SQLwizard section).

   

3. Check your email - it should contain a message from Robot@jelastic with the administration details (access URL, login and password) for your MySQL or MariaDB server.

                                              

4. Return to your dashboard and click the Open in browser button for the corresponding MySQL or MariaDB node in your environment.

Log in to the opened admin panel using the information you’ve received in the abovementioned email. Here you can create new databases (just in the same way as it is shown in the image below for the mysqlconnection one) for your application’s data storing and manage them.

    

5. Now you can upload your PHP application package to the Cloudjiffy Deployment manager and deploy it to the created environment (or perform the deployment from your GIT/SVN repository).

Connection to the Database

Once your project is successfully deployed, you need to connect it to your database. For that, your application should be appropriately configured.

There are 3 main PHP functions, used for DB connection.

1. String for establishing a connection to your MySQL/MariaDB node:

mysql_connect('HOST', 'USERNAME', 'PASSWORD');

The appropriate values should be substituted with your data:

  • HOST - MySQL server address that you’ve received via email, specified without the https:// part: 
    {db_type}{node_id}-{env_name}.{hoster_domain}

where
{db_type} - depends on the type of database server you’ve chosen: should be mysql for MySQL and mariadb for MariaDB 

{node_id} - ID of the container with database server you want to establish the connection to. It can be seen at the dashboard:

     

  • USERNAME - name of the admin DB user; the default one is root.
  • PASSWORD - password for your DB server; the default one can be also seen inside the email with database credentials.

2. For selection of the necessary database, use the next string:

mysql_select_db('DB_NAME');

wherein DB_NAME parameter should be substituted with the name of the needed database.

3. In order to close a connection to your database, execute the following:

mysql_close( );

All other available MySQL functions can be found here.

You need to specify the necessary functions in every *.php page, which should be connected to the database.

Checking the Connection

In order to ensure everything works fine, you can check the connection using this code:

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<?php
$link = mysql_connect('HOST', 'USERNAME', 'PASSWORD');
//if connection is not successful you will see text error
if (!$link) {
       die('Could not connect: ' . mysql_error());
}
//if connection is successfuly you will see message bellow
echo 'Connected successfully';
 
mysql_close($link);
?>

Note: Do not forget to substitute HOSTUSERNAME and PASSWORD in the connection string with the corresponding values (as it is described in the Connection to the Databasesection of this instruction.)

 
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