//composer exec CertificateDownloader.php

// -k  00000

//  -m 000000

//  -f  /www/wwwroot/application/cert/wechatPay/apiclient_key.pem

// -s  0000

// -o /www/wwwroot/application/cert/wechatPay/

//*   Trying 59.36.153.147:443...

//* Connected to api.mch.weixin.qq.com (59.36.153.147) port 443 (#0)

//* ALPN, offering http/1.1

//* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH

//* successfully set certificate verify locations:

//*   CAfile: /etc/ssl/certs/ca-certificates.crt

//  CApath: none

//* OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.mch.weixin.qq.com:443

//* Closing connection 0

//cURL error 35: OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.mch.weixin.qq.com:443