CURL ERROR: Recv failure: Connection reset by peer - PHP Curl

This error is usually caused by a network issue, such as a lost connection or a network timeout. It can also be caused by a problem with the server that you are trying to access, or by an issue with the network infrastructure between your client and the server.

$ch = curl_init('https://example.com/api');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_CONNECTTIMEOUT => 10,
    CURLOPT_SSL_VERIFYPEER => true,
    CURLOPT_SSL_VERIFYHOST => 2,
]);

$response = curl_exec($ch);
if ($response === false) {
    $errno = curl_errno($ch);
    $error = curl_error($ch);
    echo "cURL Error ($errno): $error";
}
curl_close($ch);

To troubleshoot this error, you can try the following steps:

1. Check your network connection and try again. If the problem persists, try connecting to a different network or using a wired connection instead of a wireless one.
2. Check the server that you are trying to access. Make sure that it is online and accessible.
3. Check any intermediate network infrastructure, such as firewalls or load balancers, to ensure that they are not blocking your connection.
4. Check the PHP code that is making the cURL request to ensure that it is correct and that there are no syntax errors or other issues. Use curl_errno() and curl_error() to get precise diagnostics.
5. Try increasing the cURL timeout value (CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT) to see if that helps. Also verify SSL/TLS configurations, as certificate mismatches or server-side drops are common causes.
6. If the problem persists, try using a tool like Wireshark to capture and analyze the network traffic to get a better understanding of what is happening.

We hope this helps! Let us know if you have any other questions.