/**
  * Set the details used to connect to the database
  * @param	string	Database server name
  * @param	string	Database name
  * @param	string	Username
  * @param	string	Password
  */
 public static function setDetails($host, $dbname, $username, $password)
 {
     self::$host = $host;
     self::$dbname = $dbname;
     self::$username = $username;
     self::$password = $password;
 }
 public static function init_connection($host, $db, $table, $username, $password)
 {
     self::$host = $host;
     self::$db = $db;
     self::$table = $table;
     self::$user = $username;
     self::$password = $password;
     self::$mysqli = new mysqli(self::$host, self::$user, self::$password, self::$db);
     return self::$mysqli->ping();
 }