微信支付V3接口,踩坑宝典

下载平台证书: 

php vendor/bin/CertificateDownloader.php -k ${apiv3_key} -m ${商户号} -f ${私钥文件} -s ${商户证书序列号} -o ${下载的平台证书保存目录}

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转载自blog.csdn.net/meimeieee/article/details/122914081