What does the PHP SSL Connect error mean?
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The CM API's demand TLS1.2 or higher (prefered 1.3) and no longer support SSLv3 and lower. And in some situations cURL in PHP is not able to auto-detect the correct cryptographic protocol. Adding the following rule to the curl_setopt_array manually fixes the protocol to TLSv1:
CURLOPT_SSLVERSION => 1
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