how to connect to the database in openshift application - php

Question

I did as following
MySQL 5.1 database added. Please make note of these credentials:
Root User: xxxxxxx
Root Password: xxxxxxx
Database Name: php
Connection URL: mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT/
You can manage your new MySQL database by also embedding phpmyadmin-3.4.
The phpmyadmin username and password will be the same as the MySQL credentials above.
phpMyAdmin 3.4 added. Please make note of these MySQL credentials again:
Root User: xxxxxxx
Root Password: xxxxxxx
URL: https://php-doers.rhcloud.com/phpmyadmin/
and i try to connect db using bellow PDO code .but it does not work
$dbh = new PDO('mysql:host=mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT/;dbname=php', "xxxxxx, "xxxxxx");
I don't know what is the connection URL mean ?

Answer 1

There is an error in your connection string plus $OPENSHIFT_MYSQL_DB_* are env variables and need to be fetched via getenv php function.
So try the following:
define('DB_HOST', getenv('OPENSHIFT_MYSQL_DB_HOST'));
define('DB_PORT',getenv('OPENSHIFT_MYSQL_DB_PORT'));
define('DB_USER',getenv('OPENSHIFT_MYSQL_DB_USERNAME'));
define('DB_PASS',getenv('OPENSHIFT_MYSQL_DB_PASSWORD'));
define('DB_NAME',getenv('OPENSHIFT_GEAR_NAME'));
$dsn = 'mysql:dbname='.DB_NAME.';host='.DB_HOST.';port='.DB_PORT;
$dbh = new PDO($dsn, DB_USER, DB_PASS);

Answer 2

Open php myadmin from webconsole , and on left corner you will get some Ip
That is like xx.xx.xx.xx:3306 , so your hostname is xx.xx.xx.xx
Ip address wil work , I have tried and worked for me

Answer 3

below code worked for me ,try this it might help you
var mysql = require('mysql');
var mysql = require('mysql');
exports.pool = mysql.createPool({
host: process.env.OPENSHIFT_MYSQL_DB_HOST || 'localhost',
port: process.env.OPENSHIFT_MYSQL_DB_PORT || '3306',
user: process.env.OPENSHIFT_MYSQL_DB_USERNAME || 'root',
password: process.env.OPENSHIFT_MYSQL_DB_PASSWORD || '',
database: 'chichat' || 'chichat',
multipleStatements : true,
charset: 'utf8'
});

Answer 4

I would like to add some information to future reference.
Today I am trying to deploy a Drupal installation to Open Shift (OS) and tried to configure MySql.
I connected to OS via SSH (rhc ssh ), went to app-root/data/sites/default. Following cat settings.php to see how OS configure database.
Here it is:
// When run from Drush, only $_ENV is available. Might be a bug
if (array_key_exists('OPENSHIFT_APP_NAME', $_SERVER)) {
$src = $_SERVER;
} else {
$src = $_ENV;
}
$databases = array (
'default' =>
array (
'default' =>
array (
'database' => $src['OPENSHIFT_APP_NAME'],
'username' => $src['OPENSHIFT_MYSQL_DB_USERNAME'],
'password' => $src['OPENSHIFT_MYSQL_DB_PASSWORD'],
'host' => $src['OPENSHIFT_MYSQL_DB_HOST'],
'port' => $src['OPENSHIFT_MYSQL_DB_PORT'],
'driver' => 'mysql',
'prefix' => '',
),
),
);
$conf['file_private_path'] = $src['OPENSHIFT_DATA_DIR'] . 'private/';
$conf['file_temporary_path'] = $src['OPENSHIFT_TMP_DIR'] . 'drupal/';
So I created a php folder into git repository (see OS documentation about Drupal), copied a clean Drupal install to it and paste code above to settings.php.
After pushing to git, restarted OS app and worked!