PHP cURL HTTP CODE return 0

If cURL is returning a HTTP code of 0, it usually indicates that cURL was unable to communicate with the server. This can be caused by a number of issues, including network connectivity problems, issues with the server, or problems with the cURL configuration.

There are a few steps you can take to troubleshoot this issue:

  1. Check the network connectivity between your server and the remote server. You can do this by using the ping command to test the connection.

  2. Check the server logs for any errors or messages that might indicate the cause of the problem.

  3. Make sure that the cURL configuration is correct. This includes the URL that you are trying to access, any proxy settings, and any SSL/TLS settings.

  4. Check the PHP error logs for any messages that might indicate the cause of the problem.

  5. Make sure that the server you are trying to access is online and reachable.

I hope this helps! Let me know if you have any other questions.