// Define $username and $password
$username=$_POST['username'];
$password=$_POST['password'];


/* -------------------------------- CONNESSIONE -------------------------------------- */
$servername = "localhosto";
$username_db = "xxxxxx";
$password_db = "yyyyyy";
$db = "zzzzzz";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$db", $username_db, $password_db);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    //echo "Connected successfully<br/><br/>";
}
catch(PDOException $e)
{
    echo "Connection failed: " . $e->getMessage()."<br/><br/>";
}

FROM php:7.0-apache


RUN apt-get update
  && apt-get install -y --no-install-recommends libpq-dev
  && docker-php-ext-install mysqli pdo_pgsql pdo_mysql


COPY / /var/www/html
EXPOSE 80

docker build -t mysoftware C:Usersmysoftware
docker run -d -p 5000:80 mysoftware

$servername = "SERVER_NAME";