바이두 결제(바이두 스마트 미니 프로그램 결제)를 다시 작성하고 캡슐화합니다.

$config = array(
    'deal_id'       => '', // 百度收银台的财务结算凭证
    'app_key'       => '', // 表示应用身份的唯一ID
    'private_key'   => '', // 私钥原始字符串
    'public_key'    => '', // 平台公钥
    'notify_url'    => '', // 支付回调地址
);

<?php
include &#39;./BaiduPay.php&#39;;
$baidupay = new \feng\BaiduPay($config);
$order_sn = time().rand(1000,9999);
$order = array(
    &#39;body&#39;          => &#39;测试商品&#39;, // 产品描述
    &#39;total_amount&#39;  => &#39;1&#39;, // 订单金额（分）
    &#39;order_sn&#39;      => $order_sn, // 订单编号
);
$re = $baidupay->xcxPay($order);
die(json_encode($re)); // JSON化直接返回小程序客户端
PHP

/**
 * [xcxPay 百度小程序支付]
 * @param  [type]  $order [订单信息数组]
 * @return [type]         [description]
 * $order = array(
 *      'body'          => '', // 产品描述
 *      'total_amount'  => '', // 订单金额（分）
 *      'order_sn'      => '', // 订单编号
 * );
 */
public static function xcxPay($order)
{
    if(!is_array($order) || count($order) < 3)
        die("数组数据信息缺失！");
    $config = self::$config;
    $requestParamsArr = array(
        &#39;appKey&#39;    => $config[&#39;app_key&#39;],
        &#39;dealId&#39;    => $config[&#39;deal_id&#39;],
        &#39;tpOrderId&#39; => $order[&#39;order_sn&#39;],
        &#39;totalAmount&#39; => $order[&#39;total_amount&#39;],
    );
    $rsaSign = self::makeSign($requestParamsArr, $config[&#39;private_key&#39;]);  // 声称百度支付签名
    $bizInfo = array(
        &#39;tpData&#39; => array(
            "appKey"        => $config[&#39;app_key&#39;],
            "dealId"        => $config[&#39;deal_id&#39;],
            "tpOrderId"     => $order[&#39;order_sn&#39;],
            "rsaSign"       => $rsaSign,
            "totalAmount"   => $order[&#39;total_amount&#39;],
            "returnData"    => &#39;&#39;,
            "displayData"   => array(
                "cashierTopBlock" => array(
                    array(
                        [ "leftCol" => "订单名称", "rightCol"   => $order[&#39;body&#39;] ],
                        [ "leftCol" => "数量", "rightCol" => "1" ],
                        [ "leftCol" => "订单金额", "rightCol"   => $order[&#39;total_amount&#39;] ]
                    ),
                    array(
                        [ "leftCol" => "服务地址", "rightCol" => "北京市海淀区上地十街10号百度大厦" ],
                        [ "leftCol" => "服务时间", "rightCol" => "2018/10/29 14:51" ],
                        [ "leftCol" => "服务人员", "rightCol" => "百度App" ]
                    )
                )
            ),
            "dealTitle"     => $order[&#39;body&#39;],
            "dealSubTitle"  => $order[&#39;body&#39;],
            "dealThumbView" => "https://b.bdstatic.com/searchbox/icms/searchbox/img/swan-logo.png",
        ),
        "orderDetailData"   => &#39;&#39;
    );
    $bdOrder = array(
        &#39;dealId&#39;        => $config[&#39;deal_id&#39;],
        &#39;appKey&#39;        => $config[&#39;app_key&#39;],
        &#39;totalAmount&#39;   => $order[&#39;total_amount&#39;],
        &#39;tpOrderId&#39;     => $order[&#39;order_sn&#39;],
        &#39;dealTitle&#39;     => $order[&#39;body&#39;],
        &#39;signFieldsRange&#39; => 1,
        &#39;rsaSign&#39;       => $rsaSign,
        &#39;bizInfo&#39;       => json_encode($bizInfo),
    );
    return $bdOrder;
}