<?php
    function db_connection() {
        global $db;

        if (!isset($db)) {
       $db_u = 'root';
   $db_p = 'lol';
   $db = new pdo('mysql:host=130.211.168.124:3306;dbname=dropcloud',
      $db_u,
      $db_p
   );
}

return $db;
}

   function login($u, $p) {
        $db = db_connection();
      $statement = $db->prepare('SELECT * from users WHERE username = :username AND password = :password');
      $statement->execute(array(':username' => $u, ':password' => $p));
      $row = $statement->fetch();
   }
?>