每次用户第一次登录时,我都会保存一些关于它们的信息。如果用户已经有条目并且条目已过时,那么它应该被更新。我的问题是试图比较用户和数据库,看他们是否已经有条目。我成功记录了用户的详细信息,但每次用户登录时都会这样做。下面您可以找到我的代码。将查询结果与当前用户进行比较
$conn = new mysqli('host', 'user', 'password', 'db');
if ($conn->connect_error) {
die("Error; Contact Support!");
}
$stmt = $conn->prepare("select * from users where steamid=? ");
$stmt->bind_param('s', $steamprofile['steamid']);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($res);
$duplicate = mysqli_num_rows($res);
if ($duplicate == 0) {
$stmt1 = $conn->prepare("REPLACE INTO `users` SET `steamid` = ?,`realname` = ?,`username` = ?");
$stmt1->bind_param('sss', $steamprofile['steamid'], $steamprofile['realname'], $steamprofile['personaname']);
$stmt1->execute();
$stmt1->store_result();
$stmt1->bind_result($res1);
if ($res1 === TRUE) {
echo "";
}
$stmt1->close();
$stmt->close();
mysqli_close($conn);
}
'$ duplicate',不管信不信,都不会引发任何错误。对于如何查看用户是否已经拥有数据库条目,我没有丝毫的线索,但这是我的悲哀尝试。 @scaisEdge – Nhabbott
蒸汽id是user_id? ..确保你在$ steamprofile ['steamid'] ..eg中有适当的值:使用var_dump($ steamprofile ['steamid']);然后检查$ duplicate,例如:var_dump($ duplicate); – scaisEdge