withHeader(['Content-Type' => 'application/json']); $client->withSslCertFile($this->payConfig->pay->qq->mchCert); $client->withSslKeyFile($this->payConfig->pay->qq->mchKey); $client->withCa($this->payConfig->pay->qq->mchCa); $proxyHost = $this->payConfig->getProxyHost(); $proxyPort = $this->payConfig->getProxyPort(); if (!empty($proxyHost) && $proxyPort > 0) { $client->withProxyHost($proxyHost)->withProxyPort($proxyPort); } $client->post($url, $data); $client->close(); return $client; } }