How can I figure out why cURL is hanging and unresponsive?

Question

I am trying to track down an issue with a cURL call in PHP. It works fine in our test environment, but not in our production environment. When I try to execute the cURL fu

Answer 1

In your php, you can set the CURLOPT_VERBOSE variable:

curl_setopt($curl, CURLOPT_VERBOSE, TRUE);

This then logs to STDERR, or to the file specified using CURLOPT_STDERR (which takes a file pointer):

curl_setopt($curl, CURLOPT_STDERR, $fp);

From the command line, you can use the following switches:

• --verbose to report more info to the command line
• --trace or --trace-ascii to trace to a file

You can use --trace-time to prepend time stamps to verbose/file outputs