public function getUserById($user_id)
{
//lau thong tin nguoi dung tu id
if (empty(self::$conn)) {
self::$conn = $this->connectPdo();
}
$sql = "SELECT * FROM user WHERE id=?";
$stmt = self::$conn->prepare($sql);
$stmt->bindParam(1, $user_id);
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC);
$users = array(array());
$i = 0;
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$users[$i++] = $row;
}
$i--;
return $users;
}
