在线租车源码 php

<?php
// 示例代码：用户登录验证
$username = $_POST['username'];
$password = $_POST['password'];

// 连接数据库
$conn = new mysqli("localhost", "username", "password", "database");

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

$sql = "SELECT * FROM users WHERE username = '$username' AND password = '$password'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    echo "登录成功";
} else {
    echo "用户名或密码错误";
}

$conn->close();
?>

<?php
// 示例代码：更新车辆状态
$vehicle_id = $_POST['vehicle_id'];
$status = $_POST['status'];

$conn = new mysqli("localhost", "username", "password", "database");

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

$sql = "UPDATE vehicles SET status = '$status' WHERE id = $vehicle_id";
if ($conn->query($sql) === TRUE) {
    echo "状态更新成功";
} else {
    echo "状态更新失败: " . $conn->error;
}

$conn->close();
?>

<?php
// 示例代码：处理支付请求
$payment_info = $_POST['payment_info'];

// 调用支付网关API
$response = call_payment_gateway_api($payment_info);

if ($response['status'] == 'success') {
    echo "支付成功";
} else {
    echo "支付失败: " . $response['message'];
}
?>