Curl'ye aşağıdaki parametreleri ekleyin site sesion bilgilerini tutuyor
curl_setopt( $curl_handle, CURLOPT_COOKIESESSION, true );
curl_setopt( $curl_handle, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt( $curl_handle, CURLOPT_COOKIEFILE,  'cookie.txt' );