Best Way to create configuration file(config.php) php [closed]

Answer 1

1) create a config.php

define('DBUSER','username');
   define('DBPWD','password');
   define('DBHOST','localhost');
   define('DBNAME','database name');

2) db.php

 dbHost, $this->user, $this->pass, $this->dbName);
        if (mysqli_connect_error()) {
            exit('Connect Error (' . mysqli_connect_errno() . ') '
                    . mysqli_connect_error());
        }
        parent::set_charset('utf-8');

       }
       public function dbquery($query)
        {
            if($this->query($query))
            {
                return true;
            }

        }
        public function get_result($query) 
        {
            $result = $this->query($query);
            if ($result->num_rows > 0){
            $row = $result->fetch_assoc();
            return $row;
            } else
            return null;


        }
    }


    ?>

3) uses

 require 'db.php';
    $query="select * from tbl_session";
    $sockets = db::getInstance()->get_result($query);

or any other query

$query="insert into `tbl_chats` (coloum_name) values('".$val."')";
$wisherID = db::getInstance()->dbquery($query);