php curl work fine on localhost but no result on server -

i use php curl, works fine on localhost no result on server (after 60 sec trying)

$ch = curl_init ($url); curl_setopt($ch, curlopt_followlocation, 1); curl_setopt($ch, curlopt_proxy, 'x.x.x.x:808'); curl_setopt($ch, curlopt_returntransfer, true); curl_setopt ($ch, curlopt_cookiejar, $ckfile); curl_setopt ($ch, curlopt_returntransfer, true); echo $output = curl_exec ($ch);