phpcms修改数据库

// 检查数据库配置
$host = 'localhost';
$user = 'username';
$password = 'password';
$dbname = 'database_name';

$conn = new mysqli($host, $user, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}
echo "连接成功";

$sql = "UPDATE table_name SET column1 = 'value1' WHERE id = 1";
if ($conn->query($sql) === TRUE) {
    echo "记录更新成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->begin_transaction();
try {
    $sql1 = "UPDATE table1 SET column1 = 'value1' WHERE id = 1";
    $sql2 = "UPDATE table2 SET column2 = 'value2' WHERE id = 2";
    if ($conn->query($sql1) === TRUE && $conn->query($sql2) === TRUE) {
        $conn->commit();
        echo "事务提交成功";
    } else {
        $conn->rollback();
        echo "事务回滚";
    }
} catch (Exception $e) {
    $conn->rollback();
    echo "异常: " . $e->getMessage();
}