用php添加多张图片并保存到mysql中

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 处理上传的图片
if(isset($_FILES['images'])){
    $errors = array();
    $uploadedFiles = array();
    $extension = array("jpeg","jpg","png","gif");

    foreach($_FILES['images']['tmp_name'] as $key => $tmp_name ){
        $file_name = $_FILES['images']['name'][$key];
        $file_tmp = $_FILES['images']['tmp_name'][$key];

        $ext = pathinfo($file_name, PATHINFO_EXTENSION);
        if(in_array($ext,$extension)){
            $new_file_name = uniqid().'.'.$ext;
            $destination = "uploads/".$new_file_name;

            if(move_uploaded_file($file_tmp, $destination)){
                $uploadedFiles[] = $destination;
                // 将图片信息插入到MySQL表中
                $sql = "INSERT INTO images (file_name, file_path) VALUES ('$file_name', '$destination')";
                if ($conn->query($sql) === TRUE) {
                    echo "图片已成功保存到数据库。";
                } else {
                    echo "保存图片到数据库时出错: " . $conn->error;
                }
            }
            else{
                $errors[] = "上传文件时出错，请重试。";
            }
        }
        else{
            $errors[] = "不支持的文件类型，请上传图片文件。";
        }
    }

    if($errors){
        print_r($errors);
    }
}
?>