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PHP and EasyWeChat: How to implement the card and coupon function through WeChat applet

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Release: 2023-07-19 13:12:01
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PHP and EasyWeChat: How to implement the card and coupon function through WeChat Mini Program

WeChat Mini Program is one of the most popular mobile application development platforms at present. It provides a wealth of functions and APIs, allowing developers to Quickly build applications of all types. Among them, the card and coupon function is a commonly used function in mini programs. Coupons, redemption codes, membership cards, etc. can be provided through cards and coupons.

This article will introduce how to use PHP and EasyWeChat to implement the card and coupon function in the WeChat mini program. EasyWeChat is a WeChat development SDK based on PHP. It provides simple and easy-to-use interface packaging, providing developers with convenient function development and integration.

  1. Preparation work
    First of all, we need to create a small program on the WeChat public platform and obtain the AppID and AppSecret of the small program. These two parameters are necessary for subsequent development using EasyWeChat. Preparation parameters.

After that, we need to install EasyWeChat SDK in the background directory. It can be installed through composer, or you can manually download the SDK and introduce it.

Install through composer:

composer require overtrue/wechat
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Manual download:
You can download the latest SDK compressed package from https://github.com/overtrue/wechat, and unzip the src directory in it Copy to the project directory.

  1. Configuring EasyWeChat
    Create a wechat.php file somewhere in the project and configure it.
<?php

require 'vendor/autoload.php';

use EasyWeChatFactory;

$config = [
    'app_id' => 'your-app-id',
    'secret' => 'your-app-secret',

    // 指定 API 调用返回结果的类型:array(default)/collection/object/raw/自定义类名
    'response_type' => 'array',
];

$app = Factory::miniProgram($config);

return $app;
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Replace your-app-id and your-app-secret with the AppID and AppSecret of your own mini program. After completing the configuration, we return the EasyWeChat object and introduce it where we need to use it.

  1. Create Cards and Vouchers
    To create cards and coupons, we need to use the WeChat applet interface to operate. Through EasyWeChat, we can easily call these interfaces.
<?php

$app = require 'wechat.php';

$result = $app->card->create([
    'card_type' => 'GENERAL_COUPON',
    'general_coupon' => ['base_info' => ['brand_name' => '优惠券', 'title' => '满100减50', 'sub_title' => '仅限首次使用']],
    'notify_users' => true
]);

print_r($result);
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In the above code, first we introduce the previously configured EasyWeChat object $app. When creating a coupon, we need to specify the type of coupon as "GENERAL_COUPON", and then set the coupon's Basic information, such as brand name, title, subtitle, etc. Finally, we set the notify_users parameter to true, which means that users will be notified immediately after the coupon is created.

  1. Issuing cards and coupons
    After creating cards and coupons, we also need to issue cards and coupons to users through the WeChat applet interface.
<?php

$app = require 'wechat.php';

$openid = 'user-openid';

$result = $app->card->grant('card-id', $openid);

print_r($result);
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In the above code, we specify the coupon id and the user's openid, and issue the coupon to the specified user.

  1. Using Cards and Vouchers
    Finally, users can use the received cards and coupons through the WeChat applet.
<?php

$app = require 'wechat.php';

$result = $app->card->consume('card-id', 'code');

print_r($result);
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When using coupons, we need to specify the coupon id and coupon code to identify the specific coupon. Discounts can be achieved by consuming cards and coupons.

The above is a simple example of using PHP and EasyWeChat to implement the card and coupon function in the WeChat mini program. Through EasyWeChat, we can easily operate and manage the cards and coupons of the mini program and provide users with discounts and benefits. Hope this article can help everyone.

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