cURL does not work - php

Question

Well, I want to login using cURL on some page.
When i paste this data in addressbar in that form in the browser
http://mywebpage.net/login.php?username=HERESMYUSERNAME&password=dded0102f44e7e0809520eb93055cb16
page takes me to the address http://mywebpage.net/user.php and everything works.
Now i want to get the same effect by using cURL but something does not work.
$url="http://mywebpage.net/login.php";
$cookie="cookie.txt";
$postdata = "username=cow&password=ass";
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6");
curl_setopt ($ch, CURLOPT_TIMEOUT, 60);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 0);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie);
curl_setopt ($ch, CURLOPT_REFERER, $url);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt ($ch, CURLOPT_POST, 1);
$result = curl_exec ($ch);
if (!$result) {
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch); // make sure we closeany current curl sessions
die($http_code.' Unable to connect to server. Please come back later.');
}
echo $result;
curl_close($ch);
it's showing me the login page with empty input's and it don't login me and move to the correct address.
When I type www.mywebpage.net/user.php shows "Err 401"
Working code here:
$url="http://mywebpage.net/login.php?username=user&password=ddad0102f44e7f0800354eb11155cb16";
$cookie="cookie.txt";
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6");
curl_setopt ($ch, CURLOPT_TIMEOUT, 60);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie);
curl_setopt ($ch, CURLOPT_REFERER, $url);
curl_setopt ($ch, CURLOPT_POST, 1);
$result = curl_exec ($ch);
if (!$result) {
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch); // make sure we closeany current curl sessions
die($http_code.' Unable to connect to server. Please come back later.');
}
echo $result;
curl_close($ch);
How i can now redirect myself to /all.php?

Answer 1

I see 3 things wrong
You are using CURL POST instead of GET
CURLOPT_FOLLOWLOCATION is set to false but your login script does redirection to user.php , even if the authentication works you would be getting empty response. I think you should set CURLOPT_FOLLOWLOCATION to true
The Url you gave not valid or not working .. am not sure if this is the real URL or just an example.
Thanks
:)