สอบถาม curl_getinfo($ch, CURLINFO_EFFECTIVE_URL) ไม่ส่งค่า url หลังจาก redirect แต่ ส่งค่า url ก่อนหน้านั้นแทน

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_COOKIESESSION, 1);
    curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__).'/cookie.txt');
    curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__).'/cookie.txt');
    curl_setopt($ch, CURLOPT_USERAGENT, "Automatic SMF poster thing");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_HEADER, 1);

    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, "user=".$user."&passwrd=".$password);
    curl_setopt($ch, CURLOPT_URL, "$domain?action=login2");
    curl_exec($ch);

    curl_setopt($ch, CURLOPT_URL, "$domain?action=post;board=".$board.".0");
    $data = curl_exec($ch);

    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_URL, "$domain?action=post2;start=0;board=".$board);

    curl_exec($ch);
    $lastUrl =  curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
    echo  $lastUrl ;// output http://www.xxx.com/abc/index.php?board=2.0

    curl_close($ch);
}