我正在写一个类,但我陷入了一个函数。它通过用户名请求电子邮件地址,但它只返回 null。
代码:
private function getUserEmail($username){
if($stmt = $this->_mysqli->prepare("SELECT email FROM users WHERE username='?'")){
$stmt->bind_param("s", $username);
$stmt->execute();
$stmt->bind_result($email);
$stmt->fetch();
var_dump($email);
$stmt->close();
return $email;
}
}