function CurlPage ( $path, $post, $proxy ) {
$ch = curl_init ( $path );
@curl_setopt ( $ch , CURLOPT_USERAGENT , $agent );
@curl_setopt ( $ch , CURLOPT_HTTPHEADER , $header );
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_TIMEOUT, 4);

if($post!='')
{
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
}

if($proxy!='')
{
curl_setopt ( $ch , CURLOPT_PROXY, $proxy);
}

$tmp = @curl_exec ( $ch );
curl_close ( $ch );
return $tmp;
}

$page=CurlPage('http://www.google.com/search?q='.$key,'',$proxy);