如何使用PHP开发商城功能：搭建图片和视频上传功能

CREATE DATABASE my_shop;
USE my_shop;

CREATE TABLE products (
    id INT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(255) NOT NULL,
    price DECIMAL(10, 2) NOT NULL,
    description TEXT,
    image VARCHAR(255),
    video VARCHAR(255)
);

<form action="upload.php" method="POST" enctype="multipart/form-data">
    <label for="image">上传图片：</label>
    <input type="file" name="image" id="image">
    
    <label for="video">上传视频：</label>
    <input type="file" name="video" id="video">
    
    <input type="submit" value="提交">
</form>

<?php
$targetDirectory = "uploads/";

$imageFile = $targetDirectory . basename($_FILES["image"]["name"]);
$videoFile = $targetDirectory . basename($_FILES["video"]["name"]);

$uploadOk = true;

$imageFileType = strtolower(pathinfo($imageFile, PATHINFO_EXTENSION));
$videoFileType = strtolower(pathinfo($videoFile, PATHINFO_EXTENSION));

// 检查文件类型
if ($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
    && $videoFileType != "mp4" && $videoFileType != "mov" && $videoFileType != "avi") {
    echo "只允许上传JPG、JPEG、PNG、MP4、MOV和AVI格式的文件。";
    $uploadOk = false;
}

// 检查文件大小
if ($_FILES["image"]["size"] > 5000000 || $_FILES["video"]["size"] > 50000000) {
    echo "文件大小超过限制。";
    $uploadOk = false;
}

// 检查上传是否成功
if ($uploadOk) {
    if (move_uploaded_file($_FILES["image"]["tmp_name"], $imageFile) &&
        move_uploaded_file($_FILES["video"]["tmp_name"], $videoFile)) {
        echo "文件上传成功。";
    } else {
        echo "文件上传失败。";
    }
}
?>

// 获取提交的表单数据
$name = $_POST["name"];
$price = $_POST["price"];
$description = $_POST["description"];

// 连接到数据库
$conn = new mysqli("localhost", "username", "password", "my_shop");

// 插入数据到数据库
$sql = "INSERT INTO products (name, price, description, image, video)
        VALUES ('$name', $price, '$description', '$imageFile', '$videoFile')";

if ($conn->query($sql) === true) {
    echo "商品信息保存成功。";
} else {
    echo "商品信息保存失败： " . $conn->error;
}

// 关闭数据库连接
$conn->close();