php fsockopen() fail issue

Question

I'm trying to use xml rpc in remote server.

using codeigniter xml-rpc class.

the xml rpc server didn't send any data. so i tracked the library

and reached to here

- parameters


THIS->SERVER : 10.222.223.53
THIS->PORT : 80
THIS->errno : 
THIS->errstr : 
THIS->timeout : 5

these are the parameters and in here,

$fp = @fsockopen($this->server, $this->port,$this->errno, $this->errstring, 
 $this->timeout);

it returns FALSE, which means connection fail.

what should be the reason of this?

i checked 80 port is open with

this command

netstat -lntp

tcp 0 0 :::80 :::* LISTEN 6712/httpd

Answer 1

As discussed in comments the problem is not in the code but in lack of connectivity. A firewall in the particular case.

To more easily debug the issue there are two approaches:

• remove the @ that is suppressing warning/error output from the fsockopen
• inspect the values of $this->errno and $this->errstr after the call failed