I have multiple classes that use static methods. These functions connect to the database using
$mysqli = new mysqli(DB_SERVER, DB_USER, DB_P
Here is one approach:
Create a singleton class, that can be accessed statically from anywhere.
class DBConnector {
private static $instance ;
public function __construct($host, $user, $password, $db){
if (self::$instance){
exit("Instance on DBConnection already exists.") ;
}
}
public static function getInstance(){
if (!self::$instance){
self::$instance = new DBConnector(a,b,c,d) ;
}
return $instance ;
}
}
An example would be:
$mysqli = DBConnector::getInstance() ;
Hovewer I suggest using another solution as well:
$mysqli = new MySQLi(a,b,c,d) ;
Then you could pass that object to other classes (constructor)
class Shop {
private $mysqli ;
public function __construct(MySQLi $mysqli){
$this->mysqli = $mysqli ;
}
}
$show = new Shop($mysqli) ;
To elaborate on a mysqli singleton:
define('SERVER', 'localhost');
define('USERNAME', 'root');
define('PASSWORD', 'password');
define('DATABASE', 'databaseName');
class mysqliSingleton
{
private static $instance;
private $connection;
private function __construct()
{
$this->connection = new mysqli(SERVER,USERNAME,PASSWORD,DATABASE);
}
public static function init()
{
if(is_null(self::$instance))
{
self::$instance = new mysqliSingleton();
}
return self::$instance;
}
public function __call($name, $args)
{
if(method_exists($this->connection, $name))
{
return call_user_func_array(array($this->connection, $name), $args);
} else {
trigger_error('Unknown Method ' . $name . '()', E_USER_WARNING);
return false;
}
}
}
You can then request the database connection by calling:
$db = mysqliSingleton::init();
You can then retrieve the database connection in your own objects:
class yourClass
{
protected $db;
public function __construct()
{
$this->db = mysqliSingleton::init();
}
}
This is the shortest version I could come up with for Bootstrap 3.
$(document).ready(function() {
if (hash = window.location.hash) {
$('.nav-tabs a[href="' + hash + '"]').tab('show');
}
});