Question

我有3个表格users alerts和articles用户可以设置提醒，因此当添加与他的个人资料相匹配的新文章时，他会收到一封电子邮件

我正在尝试编写一个小代码来执行此任务

这是我到目前为止所提出的

$query_users = "SELECT * FROM `users`";
$result_users = $conn->query($query_users);

while ($users = mysqli_fetch_row($result_users)) {
    $user_id  = $users[0];  
    $user_email  = $users[1];   
    $query_alerts = "SELECT * FROM `alerts` where user_id='$user_id' and active= '1' ";
    $result_alerts = $conn->query($query_alerts);
    while ($alerts = mysqli_fetch_row($result_alerts)) {

            $category = mysqli_real_escape_string($conn,$alerts[2]);
            $keyword = mysqli_real_escape_string($conn,$alerts[3]);

            $query_search = "SELECT * FROM `articles` WHERE `category_id` = '$category' `title` LIKE '%$keyword%' ORDER BY `articles`.`id` ASC ";
            $result_search = $conn->query($query_search);

            $count = $result_search->num_rows;

    }
    }

现在我想做的是以这种方式存储结果

将每个提醒category + keyword + count放入数组中，然后将其放入包含用户id和email

所以在底部，我可以遍历用户并发送给身份1的用户并发送电子邮件至example@website.com 像这样的表

类别|关键字|文章计数

健康|饮食| 5

商业|银行| 2

我希望你理解我的想法，我很困惑，头晕我甚至不知道在搜索框中键入什么

Answer 1

在while之外取一个数组，并在执行循环时在数组中添加3个变量。

我在你的代码中添加了两行。

$response = array();

和

$response[] = array
(
    'category' => $category,
    'keyword' => $keyword,
    'count' => $count
);

完整示例

<?php
$query_users = "SELECT * FROM `users`";
$result_users = $conn->query($query_users);

$response = array();
while ($users = mysqli_fetch_row($result_users)) 
{
    $user_id  = $users[0];  
    $user_email  = $users[1];   
    $query_alerts = "SELECT * FROM `alerts` where user_id='$user_id' and active= '1' ";
    $result_alerts = $conn->query($query_alerts);
    while ($alerts = mysqli_fetch_row($result_alerts)) 
    {
        $category = mysqli_real_escape_string($conn,$alerts[2]);
        $keyword = mysqli_real_escape_string($conn,$alerts[3]);


        $query_search = "SELECT * FROM `articles` WHERE `category_id` = '$category' `title` LIKE '%$keyword%' ORDER BY `articles`.`id` ASC ";
        $result_search = $conn->query($query_search);

        $count = $result_search->num_rows;

        $response[] = array
                (
                    'category' => $category,
                    'keyword' => $keyword,
                    'count' => $count
                );
    }
}

echo "<pre>";
print_r($response);

如何将这些数据存储在数组中

1 个答案: