php - cURL - not properly working with JSON requests or Not saving Session -

everyone!

i have 2 controllers meant search on websites. can search on them if logged in. so.. tracking post request , data goes file give answer , login page redirects normal logged in page.

first controller code

$ch = curl_init();         curl_setopt($ch, curlopt_url, self::loginurl);         #curl_setopt($ch,curlopt_httpheader,$httpheader);         curl_setopt($ch, curlopt_cookie, $cookie);         curl_setopt($ch, curlopt_post, true);         curl_setopt($ch, curlopt_postfields, $postdata);         curl_setopt($ch, curlopt_cookiesession, true);         curl_setopt($ch, curlopt_returntransfer, false);         curl_setopt($ch, curlopt_followlocation, true);          curl_exec($ch); 

so, goes loginurl, post data , displays 1, instead of website(with me logged in). 1 answer json file give successful login. problem not logged in, if set new curl handler home url. same problem goes second controller, code:

$ch = curl_init(self::loginurl);             curl_setopt($ch, curlopt_cookiejar, 'cookie_'.self::site.'.txt');             curl_setopt($ch, curlopt_cookiefile , 'cookie_'.self::site.'.txt');             curl_setopt($ch, curlopt_cookie, $cookie);             curl_setopt($ch, curlopt_referer, self::refurl);             curl_setopt($ch, curlopt_post, 1);             #curl_setopt($ch, curlopt_customrequest, "post");             curl_setopt($ch, curlopt_postfields, $postdata);             curl_setopt($ch, curlopt_httpheader, $requestheaders);             #curl_setopt($ch, curlopt_header, true);             curl_setopt($ch, curlopt_followlocation, true);             curl_setopt($ch, curlopt_returntransfer, false);             $result = curl_exec($ch);              curl_close($ch); 

sorry if used bad indenting or bad english. have nice day!

edit: may come bad cookie using, because cookie file empty, advice on this, how test it?