How to convert official account payment to WAP payment in PHP

PHP official account payment to WAP payment

With the development of mobile Internet, more and more people are beginning to use WeChat official account payment. However, in some cases, it may be necessary to convert official account payments to WAP payments to accommodate more devices and platforms. This article will introduce how to convert official account payment to WAP payment in PHP.

1. Get WeChat authorization information

Before converting official account payment to WAP payment, you need to obtain WeChat authorization information first. You can use the development documents provided by the WeChat public platform and follow the steps to develop. Among them, it is important to set the authorization callback domain name on the public platform so that the user can be redirected to the corresponding page after WeChat authorization is successful.

2. Pre-ordering

After obtaining the authorization information, you need to call the WeChat payment ordering interface to obtain the pre-ordering information. This can be achieved through the following code:

<?php require_once &#39;WxPayApi.php&#39;;

$input = new WxPayUnifiedOrder();
$input->SetBody("商品描述");
$input->SetAttach("附加数据");
$input->SetOut_trade_no("商户订单号");
$input->SetTotal_fee("订单总金额，以分为单位");
$input->SetTime_start(date("YmdHis"));
$input->SetTime_expire(date("YmdHis", time() + 600));
$input->SetGoods_tag("商品标记");
$input->SetNotify_url("回调地址");
$input->SetTrade_type("JSAPI");
$input->SetOpenid("用户openid");
$order = WxPayApi::unifiedOrder($input);

Among them, "JSAPI" needs to be modified to "WAP" to obtain WAP payment pre-order information.

3. Generate WAP payment link

After the pre-order is successfully placed, you can use the following code to generate a WAP payment link:

$url_params = [
    "appid" => "公众号appid",
    "mch_id" => "商户号",
    "nonce_str" => md5(time()),
    "prepay_id" => $order["prepay_id"],
    "time_stamp" => time(),
    "sign_type" => "MD5",
];

ksort($url_params, SORT_STRING);
$sign_str = '';
foreach ($url_params as $k => $v) {
    $sign_str .= "{$k}={$v}&";
}
$sign_str .= "key=商户支付密钥";  
$url_params["sign"] = md5($sign_str);

$url = sprintf("https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?%s", http_build_query($url_params));

4. Jump Go to the WAP payment page

Finally, after generating the WAP payment link, you can use the following code to redirect the user to the WAP payment page:

header("Location: {$url}");
exit;

In this way, the public account is completed The process of converting payment to WAP payment.

Summary

With the popularity of mobile devices, WAP payment has become a very important payment method. In PHP development, converting official account payment to WAP payment can improve the user's payment experience and expand the applicable scope of payment. Through the introduction of this article, I believe that readers have mastered how to convert official account payment to WAP payment in PHP, and can apply it in actual development.

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