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Jul 15, 2021 · Backend Development
WeChat Pay V3 Integration in PHP: Complete Backend Implementation
This article explains how to upgrade to WeChat Pay V3 in PHP, covering composer installation, configuration file setup, a table of payment methods, example usage for mini‑program payments, and a full reusable Wechat class with signing, verification, and refund functions.
Payment IntegrationV3 APIWeChat Pay
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