CURL respond code is 200 instead of 302 - php

Question

I have following code:
$curl=curl_init();
$allowAppPostPArams = 'utf8=%E2%9C%93&authenticity_token='.$this->authToken.'&permissions=manage_likes%2Cmanage_relationships%2Cmanage_comments%2C&response_type=code&app_id=d2a4fc6d2751&redirect_uri=http%3A%2F%2FsocialCamFollower%2Findex.php&choice=authorize&commit=Authorize';
curl_setopt($curl, CURLOPT_POSTFIELDS, $allowAppPostPArams);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
curl_setopt($curl, CURLOPT_COOKIEJAR, $cookie_file);
curl_setopt($curl, CURLOPT_URL, 'https://socialcam.com/oauth/form_submit');
curl_setopt($curl, CURLOPT_REFERER, $urlAppPage);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20100101 Firefox/17.0');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_close($curl);
Browser's requests:
CURL LOG
PROBLEM: Why CURL shows 200 instead of 302?
Server: MAMP, Apache2, php5.3.14. safe mode & open_basedir is not set.

Answer 1

Use this
curl_setopt($ch, CURLOPT_HEADERFUNCTION, 'read_header');
...
curl_exec($ch);
...
function read_header($curl, $header) {
echo $header;
return strlen($header);
}
With CURLOPT_FOLLOWLOCATION enabled you should get an output like
HTTP/1.0 301 Moved Permanently
Date: Fri, 20 Apr 2012 11:26:37 GMT
Server: Apache
Location: http://www.spiegel.de/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1
X-Cache: MISS from lnxp-3968.srv.mediaways.net
X-Cache-Lookup: MISS from lnxp-3968.srv.mediaways.net:91
Via: 1.0 lnxp-3968.srv.mediaways.net (squid/3.1.4)
Connection: close
HTTP/1.0 200 OK
Date: Fri, 20 Apr 2012 11:25:38 GMT
Server: Apache-Coyote/1.1
X-Powered-By: Servlet 2.4; JBoss-4.0.3SP1 (build: CVSTag=JBoss_4_0_3_SP1 date=200510231054)/Tomcat-5.5
Cache-Control: max-age=120
Expires: Fri, 20 Apr 2012 11:27:38 GMT
X-Host: lnxp-2885
X-Robots-Tag: index, follow, noarchive
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 161305
Vary: Accept-Encoding
Age: 59
X-Cache: HIT from lnxp-3954.srv.mediaways.net
X-Cache-Lookup: HIT from lnxp-3954.srv.mediaways.net:90
Via: 1.1 www.spiegel.de, 1.0 lnxp-3954.srv.mediaways.net (squid/3.1.4)
Connection: close