회계 시스템의 일정 및 알림 기능을 구현하는 방법 - PHP를 사용하여 일정 및 알림을 개발하는 방법

<?php
// 获取用户输入的日程信息
$eventDate = $_POST['event_date'];
$eventTime = $_POST['event_time'];
$eventTitle = $_POST['event_title'];
$eventDescription = $_POST['event_description'];

// 将日程信息插入到数据库
$sql = "INSERT INTO schedule (user_id, event_date, event_time, event_title, event_description)
        VALUES ('$userId', '$eventDate', '$eventTime', '$eventTitle', '$eventDescription')";
if ($conn->query($sql) === TRUE) {
    echo "日程添加成功";
} else {
    echo "日程添加失败：" . $conn->error;
}
$conn->close();
?>

<?php
// 获取用户选择的日程ID和提醒时间
$scheduleId = $_POST['schedule_id'];
$remindDate = $_POST['remind_date'];
$remindTime = $_POST['remind_time'];

// 将提醒信息插入到数据库
$sql = "INSERT INTO reminder (schedule_id, remind_date, remind_time, is_reminded)
        VALUES ('$scheduleId', '$remindDate', '$remindTime', 0)";
if ($conn->query($sql) === TRUE) {
    echo "提醒添加成功";
} else {
    echo "提醒添加失败：" . $conn->error;
}
$conn->close();
?>

<?php
// 查询用户的所有日程信息
$sql = "SELECT * FROM schedule WHERE user_id = '$userId'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出日程信息
    while($row = $result->fetch_assoc()) {
        echo "日期：" . $row["event_date"]. "，时间：" . $row["event_time"]. "，标题：" . $row["event_title"]. "<br>";
        echo "描述：" . $row["event_description"]. "<br><br>";
    }
} else {
    echo "暂无日程信息";
}
$conn->close();
?>

<?php
// 查询用户的所有提醒信息
$sql = "SELECT * FROM reminder WHERE schedule_id IN (SELECT id FROM schedule WHERE user_id = '$userId')";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出提醒信息
    while($row = $result->fetch_assoc()) {
        echo "提醒日期：" . $row["remind_date"]. "，提醒时间：" . $row["remind_time"]. "<br>";
        echo "是否已提醒：" . ($row["is_reminded"] ? "是" : "否"). "<br><br>";
    }
} else {
    echo "暂无提醒信息";
}
$conn->close();
?>