db_connection.php

<?php
// Database connection

  // Database global constants
  /*
  defined('DB_SERVER') ? null : define("DB_SERVER", "localhost");
  defined('DB_USER') ? null : define("DB_USER", "database_user");
  defined('DB_PASS') ? null : define("DB_PASS", "database_password");
  defined('DB_NAME') ? null : define("DB_NAME", "database_name");
  */

  $server = "localhost";
  $user = "database_user";
  $password = "database_password";
  $dbname = "database_name";



  // Test if connection succeeded
  if($db_connection->connect_errno()) {
    die("Database connection failed: " .
         $db_connection->connect_error() .
         " (" . $db_connection->connect_errno() . ")"
    );
  }




?>