TalkPHP - OpenID Keeps returning 'false' value.

Hey there,

I'm working on a project which includes an OpenID login page.
My code is very simple, but I keep getting 'is_valid:false' on the response, eventhough all variables was sent to the provider.

PHP Code:


		
			


ob_start();

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $_GET['openid_identity'] );

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);

curl_close($ch);

$idhtml = ob_get_clean();



preg_match( "<link rel=\"openid.server\" href=\"(.*?)\" />", $idhtml, $found );

$url = $found[1];



$url .= "?openid.mode=check_authentication";

$url .= "&openid.assoc_handle=".urlencode( $_GET['openid_assoc_handle'] );

$url .= "&openid.sig=".urlencode( $_GET['openid_sig'] );

$url .= "&openid.signed=".urlencode( $_GET['openid_signed'] );

$url .= "&openid.response_nonce=".urlencode( $_GET['openid_response_nonce'] );

$url .= "&openid.identity=".urlencode( $_GET['openid_identity'] );

$url .= "&openid.op_endpoint=".urlencode( $_GET['openid_op_endpoint'] );

$url .= "&openid.return_to=".urlencode( $_GET['openid_return_to'] );







ob_start();

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url );



curl_exec($ch);

curl_close($ch);

$ca_resp = ob_get_clean();



print $ca_resp; // return 'is_valid:false'

Thanks in advanced, Tal Gleichger.