[SOLVED] fsockopen returns Success when fails ???

[rbrown]

If I use this:

$fp=fsockopen($ip_address_lookup, $port, $errno, $errstr, 4);

 

And I intentionally enter an invalid domain name so I don't get an ip address I get:

 

0= $errno

Success=$errstr

 

And if I use a valid domain name I get:

 

0= $errno

=$errstr

 

Any idea why?

Thanks,

 

[fanfavorite]

"UDP sockets will sometimes appear to have opened without an error, even if the remote host is unreachable. The error will only become apparent when you read or write data to/from the socket. The reason for this is because UDP is a "connectionless" protocol, which means that the operating system does not try to establish a link for the socket until it actually needs to send or receive data."

[rbrown]

Thanks.. I'll try to send / get something from the server and then use those error codes.