Retrieve username, password parameters passed through curl

Question

I am trying to send username and password parameters to a url using curl, and I want to retrieve them. I send the parameters to a page, like the following:

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Answer 1

Some of the parameters, like CURLOPT_USERAGENT are send in the HTTP headers and can be retrieved using special globals like $_SERVER['HTTP_USER_AGENT'] (see http://www.php.net/manual/de/reserved.variables.server.php).

Others, like CURLOPT_SSL_VERIFYPEER are only local to CURL and don't get send to the server.