Question

我正在尝试为用户提供数据库中的无限选项，但是我不确定如何执行此操作。我将默认值设置为10，因为它们有10个视图，并且对于它们正在查看的每个页面，它都会递减计数。一旦达到0，用户将不得不再次注册，除非他们已经付款但不确定如何使观看次数不受限制

我对此处的操作感到困惑，因为找不到任何将视图设置为无限制的选项。

<?php
include_once 'navbar.php';

if(!$_SESSION['u_uid']) {
    header("Location: index.php?medical_subscriptionplan_process=notlogin");
    exit();
} else {
    include_once 'includes/dbh.php';
    if(isset($_POST['submit'])) {
        $views = strip_tags($_POST['subscriptionplan']);

        if ($views == '') {
            header("Location: index.php?medical_subscriptionplan_process=emptied");
            exit();
        } else {
            if ($views == '10_views') {
                $views = 10;
                $sql = "UPDATE users
                        SET views = ?
                        WHERE user_uid = ?;

                       ";
                $stmt = mysqli_stmt_init($conn);
                if(!mysqli_stmt_prepare($stmt, $sql)) {
                    echo "SQL error";
                } else {
                    mysqli_stmt_bind_param($stmt, "is", $views, $_SESSION['u_uid']);
                    mysqli_stmt_execute($stmt);
                } 
            } else {
                if ($views == '100_views') {
                    $views = 100;
                    $sql = "UPDATE users
                        SET views = ?
                        WHERE user_uid = ?;";
                    $stmt = mysqli_stmt_init($conn);
                    if(!mysqli_stmt_prepare($stmt, $sql)) {
                        echo "SQL error";
                    } else {
                        mysqli_stmt_bind_param($stmt, "is", $views, $_SESSION['u_uid']);
                        mysqli_stmt_execute($stmt);
                    } 
                } else {
                    if ($views == 'unlimited') {
                        $views = NULL;
                        $sql = "UPDATE users
                            SET views = ?
                            WHERE user_uid = ?;";
                        $stmt = mysqli_stmt_init($conn);
                        if(!mysqli_stmt_prepare($stmt, $sql)) {
                            echo "SQL error";
                        } else {
                            mysqli_stmt_bind_param($stmt, "is", $views, $_SESSION['u_uid']);
                            mysqli_stmt_execute($stmt);
                        }
                    }
                }
            }
        header("Location: index.php?medical_subscriptionplan_process=sucess");
        }
    }
}

Answer 1

要表示数据库中无限制的视图，只需在数据库视图列中添加-1，否则用其他正整数设置它，然后检查条件，

if (views == -1){
  // user has paid for unlimited view
}

Answer 2

您可以在数据库中添加标志（就像“ is_unlimited”一样）以检查客户访问限制

if($isunlmited==1){
   //always allow access
}else{
   //check for 10_views limit
}

如何给用户无限的观看次数

2 个答案: