How Can I Inspect Post Fields in cURL Requests During Debugging?

Debugging cURL for Post Fields Inspection

Introduction:

During debugging, developers often need to examine post fields in cURL requests. This guide will delve into techniques for extracting and viewing post field information for improved troubleshooting.

Identifying Post Fields:

To retrieve post field data, the CURLOPT_VERBOSE option should be enabled. This will generate verbose information outputting to STDERR. You can redirect this output to a temporary stream for later inspection.

curl_setopt($curlHandle, CURLOPT_VERBOSE, true);
$streamVerboseHandle = fopen('php://temp', 'w+');
curl_setopt($curlHandle, CURLOPT_STDERR, $streamVerboseHandle);

Post-Request Examination:

Once the request has been executed, retrieve the verbose log contents:

curl_exec($curlHandle);
rewind($streamVerboseHandle);
$verboseLog = stream_get_contents($streamVerboseHandle);

echo $verboseLog;

Additional Debugging Information:

cURL provides additional debugging information through curl_getinfo. This data includes request metrics such as time and size.

$metrics = curl_getinfo($curlHandle);

Conclusion:

By leveraging CURLOPT_VERBOSE and curl_getinfo, developers can easily inspect post fields and other request details for efficient debugging of cURL requests.

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