-1
對於你的天才來說,這可能是一個非常簡單的問題。我正在嘗試使用php代碼來檢查我的數據庫,以查看用戶是否有足夠的分數。然後如果他們有足夠的積分,那麼從那裏扣除積分。 這是我目前使用不工作:使用php/mysql檢查和扣分
<?php
$con = mysqli_connect("localhost", "id177667_root", "***", "id177667_loginb");
$response = array();
$statement = mysqli_prepare($con, "SELECT * FROM user WHERE username = ?");
mysqli_stmt_bind_param($statement, "s", $_POST["username"]);
mysqli_stmt_execute($statement);
mysqli_stmt_store_result($statement);
mysqli_stmt_bind_result($statement, $userID, $name, $username, $password, $points);
$pointsint = (int)$points;
if ($pointsint > 12500){
$statement = mysqli_prepare($con, "UPDATE user SET points = points - ? WHERE username = ?");
mysqli_stmt_bind_param($statement, "is", 12500, $_POST["username"]);
mysqli_stmt_execute($statement);
mysqli_stmt_store_result($statement);
mysqli_stmt_bind_result($statement, $userID, $name, $username, $password, $points);
while(mysqli_stmt_fetch($statement)){
$response["success"] = true;
$response["name"] = $name;
$response["username"] = $username;
}
}else{
$response["success"] = false;
}
echo json_encode($response);
?>
沒有足夠的時間,現在看你的問題,但作爲建議:不要選擇用戶的所有數據。沒有必要選擇*從...爲什麼不簡單地「選擇點從用戶」? Rella不需要加載密碼和所有的東西。 – Twinfriends